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Punctate psoriasis. Psoriasis: Causes, Symptoms, and Comprehensive Treatment Options

What are the underlying causes of psoriasis. How does psoriasis manifest and affect quality of life. Which treatment options are available for managing psoriasis symptoms. What are the potential complications and comorbidities associated with psoriasis. How can psoriasis be effectively managed in different patient populations.

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Understanding Psoriasis: A Complex Autoimmune Skin Condition

Psoriasis is a chronic autoimmune skin disorder characterized by the rapid buildup of skin cells, resulting in scaling on the skin’s surface. This condition affects millions of people worldwide and can significantly impact quality of life. To truly comprehend psoriasis, it’s essential to delve into its pathophysiology, prevalence, and various manifestations.

The exact cause of psoriasis remains unclear, but research suggests a combination of genetic and environmental factors play a role. T cells, a type of white blood cell, become overactive in individuals with psoriasis, triggering an inflammatory response that accelerates skin cell growth. This process leads to the formation of thick, scaly patches on the skin’s surface.

Genetic Factors in Psoriasis Development

Genetic predisposition plays a crucial role in psoriasis development. Several genes have been identified as potential contributors to the condition:

  • HLA-Cw6 gene: Strongly associated with psoriasis susceptibility
  • LCE3C_LCE3B deletion: A risk factor across various ethnic groups
  • PSORS1: A major psoriasis susceptibility locus

Understanding these genetic factors can help in developing targeted therapies and identifying individuals at higher risk for psoriasis.

Environmental Triggers and Psoriasis Flares

While genetics play a significant role, environmental factors can trigger psoriasis flares or exacerbate existing symptoms. Common triggers include:

  • Stress
  • Infections (particularly streptococcal infections)
  • Skin injuries
  • Certain medications
  • Cold weather
  • Smoking and alcohol consumption

Identifying and managing these triggers is crucial for effective psoriasis management.

Psoriasis Symptoms and Clinical Presentations

Psoriasis can manifest in various forms, each with distinct characteristics. Understanding these different presentations is crucial for accurate diagnosis and appropriate treatment selection.

Plaque Psoriasis: The Most Common Form

Plaque psoriasis, affecting approximately 80-90% of individuals with psoriasis, is characterized by:

  • Raised, red patches covered with silvery scales
  • Commonly affects elbows, knees, scalp, and lower back
  • Patches can be itchy, painful, and may crack and bleed

Guttate Psoriasis: Small, Drop-Shaped Lesions

Guttate psoriasis often appears following a streptococcal infection and is characterized by:

  • Small, drop-shaped lesions on the trunk, arms, and legs
  • Typically affects children and young adults
  • May resolve on its own or develop into plaque psoriasis

Other Psoriasis Types

Less common forms of psoriasis include:

  • Inverse psoriasis: Affects skin folds
  • Pustular psoriasis: Characterized by pus-filled blisters
  • Erythrodermic psoriasis: A severe, potentially life-threatening form
  • Nail psoriasis: Affects fingernails and toenails

Diagnosing Psoriasis: Clinical Evaluation and Differential Diagnosis

Accurate diagnosis of psoriasis is crucial for effective management. Dermatologists typically rely on clinical examination and patient history to diagnose psoriasis. In some cases, a skin biopsy may be necessary to confirm the diagnosis or rule out other skin conditions.

Key Diagnostic Criteria for Psoriasis

  • Characteristic appearance of skin lesions
  • Distribution of affected areas
  • Family history of psoriasis
  • Presence of nail changes
  • Associated joint symptoms (in cases of psoriatic arthritis)

Differential diagnosis is important, as several skin conditions can mimic psoriasis, including eczema, seborrheic dermatitis, and certain fungal infections.

Comprehensive Treatment Approaches for Psoriasis Management

Psoriasis treatment aims to reduce inflammation, slow skin cell growth, and alleviate symptoms. The choice of treatment depends on the severity of psoriasis, affected areas, and individual patient factors.

Topical Treatments: First-Line Therapy

Topical treatments are often the first line of defense against mild to moderate psoriasis:

  • Corticosteroids: Reduce inflammation and itching
  • Vitamin D analogues: Slow skin cell growth
  • Retinoids: Normalize skin cell development
  • Calcineurin inhibitors: Reduce inflammation and plaque buildup
  • Coal tar: Reduces scaling, itching, and inflammation

Phototherapy: Harnessing the Power of Light

Phototherapy involves exposing the skin to controlled amounts of natural or artificial UV light:

  • Narrowband UVB therapy: Most common form of phototherapy
  • Broadband UVB therapy: Less specific but still effective
  • Psoralen plus UVA (PUVA): Combines UVA light with a light-sensitizing medication
  • Excimer laser: Targets specific psoriasis plaques

Systemic Medications for Moderate to Severe Psoriasis

For more severe cases or when other treatments have failed, systemic medications may be prescribed:

  • Methotrexate: Suppresses the immune system and slows skin cell growth
  • Cyclosporine: Suppresses the immune system
  • Acitretin: An oral retinoid that helps normalize skin cell production
  • Apremilast: Reduces inflammation by inhibiting an enzyme called phosphodiesterase 4

Biologic Therapies: Targeted Immunomodulation

Biologic drugs target specific parts of the immune system involved in psoriasis:

  • TNF-alpha inhibitors (e.g., adalimumab, etanercept)
  • IL-12/23 inhibitors (e.g., ustekinumab)
  • IL-17 inhibitors (e.g., secukinumab, ixekizumab)
  • IL-23 inhibitors (e.g., guselkumab, risankizumab)

These medications have shown significant efficacy in managing moderate to severe psoriasis but require careful monitoring due to potential side effects.

Psoriasis Comorbidities and Associated Health Risks

Psoriasis is more than just a skin condition; it’s associated with several comorbidities that can significantly impact overall health and quality of life.

Cardiovascular Complications in Psoriasis Patients

Research has shown a strong link between psoriasis and increased cardiovascular risk:

  • Higher rates of hypertension, particularly in severe psoriasis
  • Increased risk of heart attack and stroke
  • Greater likelihood of developing metabolic syndrome

These findings underscore the importance of cardiovascular screening and management in psoriasis patients.

Psoriatic Arthritis: A Common Comorbidity

Approximately 30% of individuals with psoriasis develop psoriatic arthritis, a form of inflammatory arthritis. Key features include:

  • Joint pain, stiffness, and swelling
  • Nail changes (pitting, separation from the nail bed)
  • Enthesitis (inflammation where tendons and ligaments attach to bone)
  • Dactylitis (sausage-like swelling of fingers or toes)

Early diagnosis and treatment of psoriatic arthritis are crucial to prevent joint damage and disability.

Other Associated Health Conditions

Psoriasis has been linked to various other health issues:

  • Inflammatory bowel disease
  • Depression and anxiety
  • Obesity
  • Type 2 diabetes
  • Certain types of cancer (e.g., lymphoma)

Regular health screenings and a holistic approach to patient care are essential for managing these potential comorbidities.

Psoriasis Management in Special Populations

Psoriasis can affect individuals across all age groups and demographics, but certain populations require special considerations in their management approaches.

Pediatric Psoriasis: Unique Challenges and Treatments

Managing psoriasis in children and adolescents presents unique challenges:

  • Impact on psychosocial development and self-esteem
  • Limited treatment options due to safety concerns
  • Need for long-term disease control

Treatment approaches often start with topical therapies and phototherapy, with systemic treatments reserved for severe cases. The psychosocial impact of psoriasis in this age group should not be underestimated, and support services should be offered alongside medical treatment.

Psoriasis in Pregnancy: Balancing Risks and Benefits

Managing psoriasis during pregnancy requires careful consideration of treatment safety:

  • Many systemic treatments are contraindicated during pregnancy
  • Topical treatments are generally considered safe, but high-potency corticosteroids should be used cautiously
  • Narrowband UVB phototherapy is a safe option for moderate to severe cases

Close collaboration between dermatologists and obstetricians is crucial for optimal management of psoriasis during pregnancy.

Elderly Patients with Psoriasis

Older adults with psoriasis face unique challenges:

  • Higher risk of comorbidities
  • Potential drug interactions with medications for other conditions
  • Increased susceptibility to treatment side effects

Treatment plans for elderly patients should consider these factors and may require more frequent monitoring and dose adjustments.

Emerging Therapies and Future Directions in Psoriasis Research

The field of psoriasis treatment is rapidly evolving, with new therapies and treatment approaches on the horizon.

Novel Biologic Targets

Research is ongoing into new biologic therapies targeting different aspects of the immune system involved in psoriasis:

  • TYK2 inhibitors
  • IL-36 inhibitors
  • RORγt inhibitors

These novel targets may provide additional treatment options for patients who don’t respond to current therapies.

Personalized Medicine in Psoriasis Care

Advances in genetic research and biomarker identification are paving the way for more personalized treatment approaches:

  • Genetic testing to predict treatment response
  • Biomarkers for early detection of psoriatic arthritis
  • Tailored treatment plans based on individual patient characteristics

This personalized approach has the potential to improve treatment outcomes and reduce the trial-and-error aspect of psoriasis management.

Microbiome Research and Psoriasis

Growing evidence suggests a role for the skin and gut microbiome in psoriasis development and progression. Future research directions include:

  • Identifying microbial signatures associated with psoriasis
  • Developing microbiome-based therapies
  • Exploring the potential of probiotics in psoriasis management

Understanding the complex interplay between the microbiome and psoriasis may lead to novel therapeutic strategies.

As research in psoriasis continues to advance, the future holds promise for more effective, targeted, and personalized treatment options. This ongoing progress offers hope for improved quality of life and better long-term outcomes for individuals living with psoriasis.

Psoriasis: Practice Essentials, Background, Pathophysiology

  • Huynh N, Cervantes-Castaneda RA, Bhat P, Gallagher MJ, Foster CS. Biologic response modifier therapy for psoriatic ocular inflammatory disease. Ocul Immunol Inflamm. 2008 May-Jun. 16(3):89-93. [Medline].

  • Papp KA, Griffiths CE, Gordon K, Lebwohl M, et al. Long-term safety of ustekinumab in patients with moderate-to-severe psoriasis: final results from five years of follow-up. Br J Dermatol. 2013 Jan 10. [Medline].

  • Kimball AB, Gordon KB, Fakharzadeh S, Yeilding N, Szapary PO, Schenkel B, et al. Long-term efficacy of ustekinumab in patients with moderate-to-severe psoriasis: results from the PHOENIX 1 trial through up to 3 years. Br J Dermatol. 2012 Feb 22. [Medline].

  • Lebwohl M, Strober B, Menter A, Gordon K, Weglowska J, Puig L, et al. Phase 3 Studies Comparing Brodalumab with Ustekinumab in Psoriasis. N Engl J Med. 2015 Oct. 373 (14):1318-28. [Medline]. [Full Text].

  • Gordon KB, Strober B, Lebwohl M, Augustin M, Blauvelt A, Poulin Y, et al. Efficacy and safety of risankizumab in moderate-to-severe plaque psoriasis (UltIMMa-1 and UltIMMa-2): results from two double-blind, randomised, placebo-controlled and ustekinumab-controlled phase 3 trials. Lancet. 2018 Aug 25. 392 (10148):650-661. [Medline].

  • [Guideline] Menter A, Korman NJ, Elmets CA, Feldman SR, Gelfand JM, Gordon KB, et al. Guidelines of care for the management of psoriasis and psoriatic arthritis: section 4. Guidelines of care for the management and treatment of psoriasis with traditional systemic agents. J Am Acad Dermatol. 2009 Sep. 61(3):451-85. [Medline].

  • Mrowietz U, de Jong EM, Kragballe K, Langley R, Nast A, Puig L, et al. A consensus report on appropriate treatment optimization and transitioning in the management of moderate-to-severe plaque psoriasis. J Eur Acad Dermatol Venereol. 2013 Feb 26. [Medline].

  • Gulliver W. Long-term prognosis in patients with psoriasis. Br J Dermatol. 2008 Aug. 159 Suppl 2:2-9. [Medline].

  • Krueger JG, Bowcock A. Psoriasis pathophysiology: current concepts of pathogenesis. Ann Rheum Dis. 2005 Mar. 64 Suppl 2:ii30-6. [Medline]. [Full Text].

  • Keaney TC, Kirsner RS. New insights into the mechanism of narrow-band UVB therapy for psoriasis. J Invest Dermatol. 2010 Nov. 130(11):2534. [Medline].

  • Pietrzak AT, Zalewska A, Chodorowska G, Krasowska D, Michalak-Stoma A, Nockowski P, et al. Cytokines and anticytokines in psoriasis. Clin Chim Acta. 2008 Aug. 394(1-2):7-21. [Medline].

  • Keller JJ, Lin HC. The Effects of Chronic Periodontitis and Its Treatment on the Subsequent Risk of Psoriasis. Br J Dermatol. 2012 Jul 3. [Medline].

  • Woodrow JC, Ilchysyn A. HLA antigens in psoriasis and psoriatic arthritis. J Med Genet. 1985 Dec. 22 (6):492-5. [Medline].

  • Riveira-Munoz E, He SM, Escaramís G, et al. Meta-Analysis Confirms the LCE3C_LCE3B Deletion as a Risk Factor for Psoriasis in Several Ethnic Groups and Finds Interaction with HLA-Cw6. J Invest Dermatol. 2011 May. 131(5):1105-9. [Medline].

  • Gelfand JM, Stern RS, Nijsten T, Feldman SR, Thomas J, Kist J, et al. The prevalence of psoriasis in African Americans: results from a population-based study. J Am Acad Dermatol. 2005 Jan. 52(1):23-6. [Medline].

  • Klufas DM, Wald JM, Strober BE. Treatment of Moderate to Severe Pediatric Psoriasis: A Retrospective Case Series. Pediatr Dermatol. 2016 Feb 12. [Medline].

  • Gelfand JM, Troxel AB, Lewis JD, Kurd SK, Shin DB, Wang X, et al. The risk of mortality in patients with psoriasis: results from a population-based study. Arch Dermatol. 2007 Dec. 143(12):1493-9. [Medline].

  • Harding A. Extent of psoriasis tied to risk of comorbidities. Reuters Health Information. August 15, 2013. [Full Text].

  • Yeung H, Takeshita J, Mehta NN, et al. Psoriasis Severity and the Prevalence of Major Medical Comorbidity: A Population-Based Study. JAMA Dermatol. 2013 Aug 7. [Medline].

  • webmd.com”>Patel RV, Shelling ML, Prodanovich S, Federman DG, Kirsner RS. Psoriasis and vascular disease-risk factors and outcomes: a systematic review of the literature. J Gen Intern Med. 2011 Sep. 26(9):1036-49. [Medline].

  • Li WQ, Han JL, Manson JE, Rimm EB, Rexrode KM, Curhan GC, et al. Psoriasis and risk of nonfatal cardiovascular disease in U.S. women: a cohort study. Br J Dermatol. 2012 Apr. 166(4):811-8. [Medline].

  • Henderson D. Psoriasis severity linked to uncontrolled hypertension. Medscape Medical News. October 27, 2014. [Full Text].

  • Takeshita J, Wang S, Shin DB, Mehta NN, Kimmel SE, Margolis DJ, et al. Effect of Psoriasis Severity on Hypertension Control: A Population-Based Study in the United Kingdom. JAMA Dermatol. 2014 Oct 15. [Medline].

  • webmd.com”>Wan J, Wang S, Haynes K, Denburg MR, Shin DB, Gelfand JM. Risk of moderate to advanced kidney disease in patients with psoriasis: population based cohort study. BMJ. 2013 Oct 15. 347:f5961. [Medline].

  • Laidman J. Moderate and Severe Psoriasis Linked to Higher Kidney Risks. Medscape [serial online]. Available at http://www.medscape.com/viewarticle/812730. Accessed: October 21, 2013.

  • Kurd SK, Troxel AB, Crits-Christoph P, Gelfand JM. The risk of depression, anxiety, and suicidality in patients with psoriasis: a population-based cohort study. Arch Dermatol. 2010 Aug. 146(8):891-5. [Medline]. [Full Text].

  • Oostveen AM, de Jager ME, van de Kerkhof PC, Donders AR, de Jong EM, Seyger MM. The influence of treatments in daily clinical practice on the Children’s Dermatology Life Quality Index in juvenile psoriasis: a longitudinal study from the Child-CAPTURE patient registry. Br J Dermatol. 2012 May 23. [Medline].

  • Lucka TC, Pathirana D, Sammain A, Bachmann F, Rosumeck S, Erdmann R, et al. Efficacy of systemic therapies for moderate-to-severe psoriasis: a systematic review and meta-analysis of long-term treatment. J Eur Acad Dermatol Venereol. 2012 Mar 9. [Medline].

  • Pettey AA, Balkrishnan R, Rapp SR, Fleischer AB, Feldman SR. Patients with palmoplantar psoriasis have more physical disability and discomfort than patients with other forms of psoriasis: implications for clinical practice. J Am Acad Dermatol. 2003 Aug. 49(2):271-5. [Medline].

  • Sampogna F, Tabolli S, Soderfeldt B, Axtelius B, Aparo U, Abeni D. Measuring quality of life of patients with different clinical types of psoriasis using the SF-36. Br J Dermatol. 2006 May. 154(5):844-9. [Medline].

  • Langenbruch A, Radtke MA, Krensel M, Jacobi A, Reich K, Augustin M. Nail involvement as a predictor of concomitant psoriatic arthritis in patients with psoriasis. Br J Dermatol. 2014 Nov. 171(5):1123-8. [Medline].

  • Moadel K, Perry HD, Donnenfeld ED, Zagelbaum B, Ingraham HJ. Psoriatic corneal abscess. Am J Ophthalmol. 1995 Jun. 119(6):800-1. [Medline].

  • Durrani K, Foster CS. Psoriatic uveitis: a distinct clinical entity?. Am J Ophthalmol. 2005 Jan. 139(1):106-11. [Medline].

  • Takahashi H, Sugita S, Shimizu N, Mochizuki M. A high viral load of Epstein-Barr virus DNA in ocular fluids in an HLA-B27-negative acute anterior uveitis patient with psoriasis. Jpn J Ophthalmol. 2008 Mar-Apr. 52(2):136-8. [Medline].

  • webmd.com”>Lipper GM. Psoriasis and IBD: Is This Comorbidity for Real?. Medscape Dermatology. Available at https://www.medscape.com/viewarticle/907240. January 11, 2019; Accessed: January 15, 2019.

  • Fu Y, Lee CH, Chi CC. Association of Psoriasis With Inflammatory Bowel Disease: A Systematic Review and Meta-analysis. JAMA Dermatol. 2018 Dec 1. 154 (12):1417-1423. [Medline].

  • Tsai TF, Wang TS, Hung ST, Tsai PI, Schenkel B, Zhang M, et al. Epidemiology and comorbidities of psoriasis patients in a national database in Taiwan. J Dermatol Sci. 2011 Jul. 63 (1):40-6. [Medline].

  • Elston DM, Ferringer T, Ko C, Peckham S, High W, DiCaudo D. Dermatopathology. 2nd ed. Philadelphia, Pa: Elsevier Saunders; 2013.

  • [Guideline] Menter A, Gottlieb A, Feldman SR, Van Voorhees AS, Leonardi CL, Gordon KB, et al. Guidelines of care for the management of psoriasis and psoriatic arthritis: Section 1. Overview of psoriasis and guidelines of care for the treatment of psoriasis with biologics. J Am Acad Dermatol. 2008 May. 58(5):826-50. [Medline].

  • [Guideline] Menter A, Korman NJ, Elmets CA, Feldman SR, Gelfand JM, Gordon KB, et al. Guidelines of care for the management of psoriasis and psoriatic arthritis. Section 3. Guidelines of care for the management and treatment of psoriasis with topical therapies. J Am Acad Dermatol. 2009 Apr. 60(4):643-59. [Medline].

  • [Guideline] Menter A, Korman NJ, Elmets CA, Feldman SR, Gelfand JM, Gordon KB, et al. Guidelines of care for the management of psoriasis and psoriatic arthritis: Section 5. Guidelines of care for the treatment of psoriasis with phototherapy and photochemotherapy. J Am Acad Dermatol. 2010 Jan. 62(1):114-35. [Medline].

  • [Guideline] Menter A, Korman NJ, Elmets CA, Feldman SR, Gelfand JM, Gordon KB, et al. Guidelines of care for the management of psoriasis and psoriatic arthritis Section 6. Guidelines of care for the treatment of psoriasis and psoriatic arthritis: Case-based presentations and evidence-based conclusions. J Am Acad Dermatol. 2011 Feb 7. [Medline].

  • Mason AR, Mason J, Cork M, Dooley G, Edwards G. Topical treatments for chronic plaque psoriasis. Cochrane Database Syst Rev. 2009 Apr 15. CD005028. [Medline].

  • Stern RS. The risk of squamous cell and basal cell cancer associated with psoralen and ultraviolet A therapy: A 30-year prospective study. J Am Acad Dermatol. 2012 Jan 18. [Medline].

  • Carrascosa JM, Plana A, Ferrandiz C. Effectiveness and Safety of Psoralen-UVA (PUVA) Topical Therapy in Palmoplantar Psoriasis: A Report on 48 Patients. Actas Dermosifiliogr. 2013 Mar 6. [Medline].

  • Mehta D, Lim HW. Ultraviolet B Phototherapy for Psoriasis: Review of Practical Guidelines. Am J Clin Dermatol. 2016 Feb 12. [Medline].

  • Stern DK, Creasey AA, Quijije J, Lebwohl MG. UV-A and UV-B Penetration of Normal Human Cadaveric Fingernail Plate. Arch Dermatol. 2011 Apr. 147(4):439-41. [Medline].

  • Brown T. Fingernail Psoriasis Data Added to Humira Prescribing Info. Medscape News & Perspective. Available at http://www.medscape.com/viewarticle/877985?src=soc_fb_170405_mscpedt_news_pharm_humira. March 30, 2017; Accessed: April 6, 2017.

  • Mantovani A, Gisondi P, Lonardo A, Targher G. Relationship between Non-Alcoholic Fatty Liver Disease and Psoriasis: A Novel Hepato-Dermal Axis?. Int J Mol Sci. 2016 Feb 5. 17 (2):[Medline].

  • Salvi M, Macaluso L, Luci C, Mattozzi C, Paolino G, Aprea Y, et al. Safety and efficacy of anti-tumor necrosis factors α in patients with psoriasis and chronic hepatitis C. World J Clin Cases. 2016 Feb 16. 4 (2):49-55. [Medline].

  • Komrokji RS, Kulasekararaj A, Al Ali NH, Kordasti S, Bart-Smith E, Craig BM, et al. Autoimmune Diseases and Myelodysplastic Syndromes. Am J Hematol. 2016 Feb 13. [Medline].

  • Sorensen EP, Algzlan H, Au SC, Garber C, Fanucci K, Nguyen MB, et al. Lower Socioeconomic Status is Associated With Decreased Therapeutic Response to the Biologic Agents in Psoriasis Patients. J Drugs Dermatol. 2016 Feb 1. 15 (2):147-53. [Medline].

  • Castaldo G, Galdo G, Rotondi Aufiero F, Cereda E. Very low-calorie ketogenic diet may allow restoring response to systemic therapy in relapsing plaque psoriasis. Obes Res Clin Pract. 2015 Nov 8. [Medline].

  • Barrea L, Balato N, Di Somma C, Macchia PE, Napolitano M, Savanelli MC, et al. Nutrition and psoriasis: is there any association between the severity of the disease and adherence to the Mediterranean diet?. J Transl Med. 2015 Jan 27. 13:18. [Medline].

  • Millsop JW, Bhatia BK, Debbaneh M, Koo J, Liao W. Diet and psoriasis, part III: role of nutritional supplements. J Am Acad Dermatol. 2014 Sep. 71 (3):561-9. [Medline].

  • Finamor DC, Sinigaglia-Coimbra R, Neves LC, Gutierrez M, Silva JJ, Torres LD, et al. A pilot study assessing the effect of prolonged administration of high daily doses of vitamin D on the clinical course of vitiligo and psoriasis. Dermatoendocrinol. 2013 Jan 1. 5 (1):222-34. [Medline].

  • webmd.com”>Hackethal V. Guidelines on Psoriasis Comorbidity Screening in Kids Issued. Medscape News & Perspective. Available at http://www.medscape.com/viewarticle/880462?nlid=115307_1584&src=WNL_mdplsfeat_170530_mscpedit_derm&uac=106950CX&spon=33&impID=1357759&faf=1#vp_1. May 23, 2017; Accessed: May 31, 2017.

  • [Guideline] Elmets CA, Korman NJ, Prater EF, et al. Joint AAD-NPF Guidelines of care for the management and treatment of psoriasis with topical therapy and alternative medicine modalities for psoriasis severity measures. J Am Acad Dermatol. 2021 Feb. 84 (2):432-470. [Medline]. [Full Text].

  • [Guideline] Smith CH, Yiu ZZN, Bale T, et al. British Association of Dermatologists guidelines for biologic therapy for psoriasis 2020: a rapid update. Br J Dermatol. 2020 Oct. 183 (4):628-637. [Medline]. [Full Text].

  • webmd.com”>[Guideline] Menter A, Strober BE, Kaplan DH, et al. Joint AAD-NPF guidelines of care for the management and treatment of psoriasis with biologics. J Am Acad Dermatol. 2019 Apr. 80 (4):1029-1072. [Medline].

  • [Guideline] Berth-Jones J, Exton LS, Ladoyanni E, Mohd Mustapa MF, Tebbs VM, Yesudian PD, et al. British Association of Dermatologists guidelines for the safe and effective prescribing of oral ciclosporin in dermatology 2018. Br J Dermatol. 2019 Jun. 180 (6):1312-1338. [Medline]. [Full Text].

  • [Guideline] Elmets CA, Lim HW, Stoff B, et al. Joint American Academy of Dermatology-National Psoriasis Foundation guidelines of care for the management and treatment of psoriasis with phototherapy. J Am Acad Dermatol. 2019 Sep. 81 (3):775-804. [Medline]. [Full Text].

  • Kui R, Gál B, Gaál M, Kiss M, Kemény L, Gyulai R. Presence of antidrug antibodies correlates inversely with the plasma tumor necrosis factor (TNF)-α level and the efficacy of TNF-inhibitor therapy in psoriasis. J Dermatol. 2016 Feb 19. [Medline].

  • Di Lernia V, Bardazzi F. Profile of tofacitinib citrate and its potential in the treatment of moderate-to-severe chronic plaque psoriasis. Drug Des Devel Ther. 2016. 10:533-9. [Medline].

  • Skin and Wound Care | Psoriasis Causes, and Treatments

    By the WoundSource Editors

    Psoriasis is a chronic, noncontagious skin disease resulting from an atypical autoimmune response which leads to accelerated skin growth and the formation of skin lesions. Psoriasis causes skin cells that typically take a month to grow to form in a matter of days. This in turn leads to the buildup of cells on the surface of the skin which then form silvery scales over red, dry, itchy patches called plaques. The most common form of psoriasis (and the focus of this article) is the abovementioned plaque psoriasis, also referred to as psoriasis vulgaris, accounting for 80-90% of psoriatic patients.

    Background:

    While psoriasis is considered to be a skin disease, it is actually caused by an underlying autoimmune disorder. In this case, T-cells which typically protect the body from infection are activated, causing inflammation and an increase in the rate of cell production. Typically, skin grows in such a way to replace itself around every 30 days. However, with psoriasis the skin replaces itself faster than it can slough off, resulting in silvery plaques over the affected skin.

    Symptoms:

    With plaque psoriasis, the affected area will turn red with inflammation and be covered with silvery dry scales. Typically these lesions form on the elbows, knees, scalp and trunk, though psoriasis can affect any area on the body, including the soft tissue inside of the mouth. When removed, the skin underneath these plaques will often display telltale punctate bleeding points, referred to as the Auspitz sign. Typically, plaques will occur symmetrically on both sides of the body, and can be both itchy and painful. Psoriasis can also affect the joints, with inflammation causing discomfort or even distortion, and is referred to as psoriatic arthritis. Most patients will experience symptoms of psoriasis in cycles, with the affected area flaring up for a time before subsiding or going into full remission.

    Causes:

    While the exact cause of psoriasis is unknown, in most cases the condition is hereditary (although multiple genes are involved, so it is often unclear from whom it has been inherited). In some cases, the first outbreak can be triggered by stress, skin injury, or streptococcal infection, such as strep throat. While it is currently accepted that the immune system plays an important role in the overproduction of skin cells leading to psoriasis, the extent of involvement and exact role it plays is still unclear.

    Treatment:

    Currently, there is no cure for psoriasis, but sufficient management of the condition and symptoms is attainable for most patients. Treatment of psoriasis varies greatly from patient to patient based on the severity of the condition.

    The three levels of treatment for psoriasis, ordered by increasing severity of symptoms are:

    • Topical application of corticosteroids
    • Phototherapy treatments
    • Systemic therapy (medications take orally, by injection or by infusion)

    Due to the chronic nature of psoriasis, treatments are often combined in various ways and rotated every 6 to 24 months in order to reduce adverse reactions or resistance. Most cases of psoriasis are relatively mild, and simply applying cream or lotion to keep the skin moist can significantly improve the condition.

    Risks:

    The following precautions can help minimize the occurrence of flare-ups and maximize the effectiveness of treatment in patients with psoriasis:

    • Maintain good health in order to help the immune system fight off infections that can in turn aggravate the skin.
    • Be aware of the triggers for psoriasis, most notably stress, dry winter weather, skin injury, smoking and heavy drinking.
    • Keep a record of flare-ups, including any relevant information about the preceding circumstances.
    • Take good care of the skin, applying lotions, creams and/or emollients daily and avoid scratching the affected area.
    • After bathing, pat skin dry. Rubbing can irritate the skin and lead to lesions.
    • Avoid bathing in hot water or using harsh soaps, as these can aggravate the affected skin.

    For more information:

    Psoriasis and Psoriatic Arthritis at the American Academy of Dermatology
    Psoriasis Overview at the American Osteopathic College of Dermatology
    Psoriasis Overview at the Mayo Clinic
    Psoriasis Overview at the New Zealand Dermatological Society
    Psoriasis Overview at WebMD
    The National Psoriasis Foundation

    Products for Psoriasis – Dermatology

    Psoriasis | Nature Reviews Disease Primers

  • 1

    Lebwohl, M. Psoriasis. Lancet 361, 1197–1204 (2003). This is a concise, yet comprehensive summary of the understanding of psoriasis pathophysiology and of the topical, light-based and biologic therapies that are used to treat the disease.

    Article 
    PubMed 

    Google Scholar 

  • 2

    Gudjonsson, J. E. & Elder, J. T. in Fitzpatrick’s Dermatology in General Medicine 8th edn (eds Goldmith, L. A. et al.) 197–231 (McGraw-Hill Education, 2012). This is a widely cited textbook chapter on psoriasis.

    Google Scholar 

  • 3

    Gelfand, J. M. et al. Determinants of quality of life in patients with psoriasis: a study from the US population. J. Am. Acad. Dermatol. 51, 704–708 (2004).

    Article 
    PubMed 

    Google Scholar 

  • 4

    Kim, N., Thrash, B. & Menter, A. Comorbidities in psoriasis patients. Semin. Cutan. Med. Surg. 29, 10–15 (2010).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 5

    Parisi, R. et al. Global epidemiology of psoriasis: a systematic review of incidence and prevalence. J. Invest. Dermatol. 133, 377–385 (2013). This systematic review summarizes the global incidence and prevalence of psoriasis.

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 6

    Tollefson, M. M., Crowson, C. S., McEvoy, M. T. & Maradit Kremers, H. Incidence of psoriasis in children: a population-based study. J. Am. Acad. Dermatol. 62, 979–987 (2010).

    Article 
    PubMed 

    Google Scholar 

  • 7

    Icen, M. et al. Trends in incidence of adult-onset psoriasis over three decades: a population-based study. J. Am. Acad. Dermatol. 60, 394–401 (2009).

    Article 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 8

    National Psoriasis Foundation. About psoriasis. National Psoriasis Foundationhttps://www.psoriasis.org/about-psoriasis (accessed 11 Oct 2016).

  • 9

    Langley, R. G. & Ellis, C. N. Evaluating psoriasis with Psoriasis Area and Severity Index, Psoriasis Global Assessment, and Lattice System Physician’s Global Assessment. J. Am. Acad. Dermatol. 51, 563–569 (2004).

    Article 
    PubMed 

    Google Scholar 

  • 10

    Zachariae, H. et al. Quality of life and prevalence of arthritis reported by 5,795 members of the Nordic Psoriasis Associations. Data from the Nordic Quality of Life Study. Acta Derm. Venereol. 82, 108–113 (2002).

    Article 
    PubMed 

    Google Scholar 

  • 11

    Gelfand, J. M. et al. Epidemiology of psoriatic arthritis in the population of the United States. J. Am. Acad. Dermatol. 53, 573 (2005).

    Article 
    PubMed 

    Google Scholar 

  • 12

    Reich, K. , Krüger, K., Mössner, R. & Augustin, M. Epidemiology and clinical pattern of psoriatic arthritis in Germany: a prospective interdisciplinary epidemiological study of 1511 patients with plaque-type psoriasis. Br. J. Dermatol. 160, 1040–1047 (2009). This observational, prospective, cohort study demonstrates the substantial number of patients with psoriasis who were treated by dermatologists and had undiagnosed PsA, emphasizing the essential role of dermatologists in evaluating patients with psoriasis for joint involvement.

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 13

    Mease, P. J. et al. Prevalence of rheumatologist-diagnosed psoriatic arthritis in patients with psoriasis in European/North American dermatology clinics. J. Am. Acad. Dermatol. 69, 729–735 (2013).

    Article 
    PubMed 

    Google Scholar 

  • 14

    Gladman, D. D., Antoni, C. , Mease, P., Clegg, D. O. & Nash, P. Psoriatic arthritis: epidemiology, clinical features, course, and outcome. Ann. Rheum. Dis. 64 (Suppl. 2), ii14–ii17 (2005). This comprehensive review characterizes the clinical features of PsA and the scope of disease prevalence, which may be underestimated.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 15

    Ahlehoff, O. et al. Cardiovascular disease event rates in patients with severe psoriasis treated with systemic anti-inflammatory drugs: a Danish real-world cohort study. J. Intern. Med. 273, 197–204 (2013).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 16

    Yeung, H. et al. Psoriasis severity and the prevalence of major medical comorbidity: a population-based study. JAMA Dermatol. 149, 1173–1179 (2013).

    Article 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 17

    Ahlehoff, O. et al. Psoriasis is associated with clinically significant cardiovascular risk: a Danish nationwide cohort study. J. Intern. Med. 270, 147–157 (2011).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 18

    Gelfand, J. M. et al. Risk of myocardial infarction in patients with psoriasis. JAMA 296, 1735–1741 (2006). This population-based, prospective, cohort study from the United Kingdom describes a dose-dependent, increased risk of myocardial infarction among patients with psoriasis.

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 19

    Dowlatshahi, E. A. et al. Psoriasis is not associated with atherosclerosis and incident cardiovascular events: the Rotterdam Study. J. Invest. Dermatol. 133, 2347–2354 (2013).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 20

    Wakkee, M. , Herings, R. M. & Nijsten, T. Psoriasis may not be an independent risk factor for acute ischemic heart disease hospitalizations: results of a large population-based Dutch cohort. J. Invest. Dermatol. 130, 962–967 (2010).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 21

    Dalgard, F. J. et al. The psychological burden of skin diseases: a cross-sectional multicenter study among dermatological out-patients in 13 European countries. J. Invest. Dermatol. 135, 984–991 (2015).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 22

    Rahman, P. & Elder, J. T. Genetic epidemiology of psoriasis and psoriatic arthritis. Ann. Rheum. Dis. 64 (Suppl. 2), ii37–ii39; discussion ii40–ii41 (2005). This review describes our current understanding of the genetic contributions to psoriasis and PsA and the techniques used in determining these contributions.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 23

    Lonnberg, A. S. et al. Heritability of psoriasis in a large twin sample. Br. J. Dermatol. 169, 412–416 (2013).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 24

    Lonnberg, A. S. et al. Genetic factors explain variation in the age at onset of psoriasis: a population-based twin study. Acta Derm. Venereol. 96, 35–38 (2016).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 25

    Grjibovski, A. M., Olsen, A. O., Magnus, P. & Harris, J. R. Psoriasis in Norwegian twins: contribution of genetic and environmental effects. J. Eur. Acad. Dermatol. Venereol. 21, 1337–1343 (2007).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 26

    Moll, J. M., Wright, V., O’Neill, T. & Silman, A. J. Familial occurrence of psoriatic arthritis. Ann. Rheum. Dis. 32, 181–201 (1973).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 27

    Myers, A., Kay, L. J., Lynch, S. A. & Walker, D. J. Recurrence risk for psoriasis and psoriatic arthritis within sibships. Rheumatology (Oxford) 44, 773–776 (2005).

    Article 
    CAS 

    Google Scholar 

  • 28

    Chandran, V. et al. Familial aggregation of psoriatic arthritis. Ann. Rheum. Dis. 68, 664–667 (2009).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 29

    Karason, A., Love, T. J. & Gudbjornsson, B. A strong heritability of psoriatic arthritis over four generations — the Reykjavik Psoriatic Arthritis Study. Rheumatology (Oxford) 48, 1424–1428 (2009).

    Article 

    Google Scholar 

  • 30

    Gudjonsson, J. E. & Elder, J. T. Psoriasis: epidemiology. Clin. Dermatol. 25, 535–546 (2007).

    Article 
    PubMed 

    Google Scholar 

  • 31

    Mahil, S. K., Capon, F. & Barker, J. N. Genetics of psoriasis. Dermatol. Clin. 33, 1–11 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 32

    Tsoi, L. C. et al. Large-scale meta-analysis identifies 18 novel psoriasis susceptibility loci. Nat. Commun. (in the press).

  • 33

    Veal, C. D. et al. Family-based analysis using a dense single-nucleotide polymorphism-based map defines genetic variation at PSORS1, the major psoriasis-susceptibility locus. Am. J. Hum. Genet. 71, 554–564 (2002).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 34

    Nair, R. P. et al. Sequence and haplotype analysis supports HLA-C as the psoriasis susceptibility 1 gene. Am. J. Hum. Genet. 78, 827–851 (2006).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 35

    Okada, Y. et al. Fine mapping major histocompatibility complex associations in psoriasis and its clinical subtypes. Am. J. Hum. Genet. 95, 162–172 (2014).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 36

    Fan, X. et al. Fine mapping of the psoriasis susceptibility locus PSORS1 supports HLA-C as the susceptibility gene in the Han Chinese population. PLoS Genet. 4, e1000038 (2008).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 37

    Henseler, T. & Christophers, E. Psoriasis of early and late onset: characterization of two types of psoriasis vulgaris. J. Am. Acad. Dermatol. 13, 450–456 (1985).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 38

    Thorleifsdottir, R. H. et al. HLA-Cw6 homozygosity in plaque psoriasis is associated with streptococcal throat infections and pronounced improvement after tonsillectomy: a prospective case series. J. Am. Acad. Dermatol. 75, 889–896 (2016).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 39

    Sagoo, G. S. et al. Meta-analysis of genome-wide studies of psoriasis susceptibility reveals linkage to chromosomes 6p21 and 4q28–q31 in Caucasian and Chinese Hans population. J. Invest. Dermatol. 122, 1401–1405 (2004).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 40

    Sagoo, G. S., Cork, M. J., Patel, R. & Tazi-Ahnini, R. Genome-wide studies of psoriasis susceptibility loci: a review. J. Dermatol. Sci. 35, 171–179 (2004).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 41

    Karason, A. et al. Genetics of psoriasis in Iceland: evidence for linkage of subphenotypes to distinct loci. J. Invest. Dermatol. 124, 1177–1185 (2005).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 42

    Tomfohrde, J. et al. Gene for familial psoriasis susceptibility mapped to the distal end of human chromosome 17q. Science 264, 1141–1145 (1994).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 43

    Capon, F., Semprini, S., Dallapiccola, B. & Novelli, G. Evidence for interaction between psoriasis-susceptibility loci on chromosomes 6p21 and 1q21 [letter]. Am. J. Hum. Genet. 65, 1798–1800 (1999).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 44

    Veal, C. D. et al. Identification of a novel psoriasis susceptibility locus at 1p and evidence of epistasis between PSORS1 and candidate loci. J. Med. Genet. 38, 7–13 (2001).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 45

    Lee, Y. A. et al. Genomewide scan in german families reveals evidence for a novel psoriasis-susceptibility locus on chromosome 19p13. Am. J. Hum. Genet. 67, 1020–1024 (2000).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 46

    Risch, N. & Merikangas, K. The future of genetic studies of complex human diseases. Science 273, 1516–1517 (1996).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 47

    Yin, X. et al. Genome-wide meta-analysis identifies multiple novel associations and ethnic heterogeneity of psoriasis susceptibility. Nat. Commun. 6, 6916 (2015).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 48

    Zuo, X. et al. Whole-exome SNP array identifies 15 new susceptibility loci for psoriasis. Nat. Commun. 6, 6793 (2015).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 49

    Tsoi, L. C. et al. Enhanced meta-analysis and replication studies identify five new psoriasis susceptibility loci. Nat. Commun. 6, 7001 (2015).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 50

    Tsoi, L. C. et al. Identification of 15 new psoriasis susceptibility loci highlights the role of innate immunity. Nat. Genet. 44, 1341–1348 (2012).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 51

    Bowes, J. et al. Dense genotyping of immune-related susceptibility loci reveals new insights into the genetics of psoriatic arthritis. Nat. Commun. 6, 6046 (2015).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 52

    Stuart, P. E. et al. Genome-wide association analysis of psoriatic arthritis and cutaneous psoriasis reveals differences in their genetic architecture. Am. J. Hum. Genet. 97, 816–836 (2015).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 53

    Bowes, J. et al. PTPN22 is associated with susceptibility to psoriatic arthritis but not psoriasis: evidence for a further PsA-specific risk locus. Ann. Rheum. Dis. 74, 1882–1885 (2015).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 54

    Shendure, J. & Lieberman Aiden, E. The expanding scope of DNA sequencing. Nat. Biotechnol. 30, 1084–1094 (2012).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 55

    Mossner, R. et al. Palmoplantar pustular psoriasis is associated with missense variants in CARD14, but not with loss-of-function mutations in IL36RN in European patients. J. Invest. Dermatol. 135, 2538–2541 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 56

    Jordan, C. T. et al. PSORS2 is due to mutations in CARD14. Am. J. Hum. Genet. 90, 784–795 (2012).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 57

    Setta-Kaffetzi, N. et al. AP1S3 mutations are associated with pustular psoriasis and impaired Toll-like receptor 3 trafficking. Am. J. Hum. Genet. 94, 790–797 (2014).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 58

    Marrakchi, S. et al. Interleukin-36-receptor antagonist deficiency and generalized pustular psoriasis. N. Engl. J. Med. 365, 620–628 (2011).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 59

    Onoufriadis, A. et al. Mutations in IL36RN/IL1F5 are associated with the severe episodic inflammatory skin disease known as generalized pustular psoriasis. Am. J. Hum. Genet. 89, 432–437 (2011).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 60

    Setta-Kaffetzi, N. et al. Rare pathogenic variants in IL36RN underlie a spectrum of psoriasis-associated pustular phenotypes. J. Invest. Dermatol. 133, 1366–1369 (2013).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 61

    Capon, F. IL36RN mutations in generalized pustular psoriasis: just the tip of the iceberg?. J. Invest. Dermatol. 133, 2503–2504 (2013).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 62

    Edwards, S. L., Beesley, J., French, J. D. & Dunning, A. M. Beyond GWASs: illuminating the dark road from association to function. Am. J. Hum. Genet. 93, 779–797 (2013).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 63

    Tsoi, L. C., Elder, J. T. & Abecasis, G. R. Graphical algorithm for integration of genetic and biological data: proof of principle using psoriasis as a model. Bioinformatics 31, 1243–1249 (2015).

    Article 
    PubMed 

    Google Scholar 

  • 64

    Swindell, W. R. et al. Psoriasis drug development and GWAS interpretation through in silico analysis of transcription factor binding sites. Clin. Transl Med. 4, 13 (2015).

    Article 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 65

    Suzuki, E., Mellins, E. D., Gershwin, M. E., Nestle, F. O. & Adamopoulos, I. E. The IL-23/IL-17 axis in psoriatic arthritis. Autoimmun. Rev. 13, 496–502 (2014).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 66

    Lande, R. et al. Plasmacytoid dendritic cells sense self-DNA coupled with antimicrobial peptide. Nature 449, 564–569 (2007).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 67

    Zheng, Y. et al. Interleukin-22, a Th27 cytokine, mediates IL-23-induced dermal inflammation and acanthosis. Nature 445, 648–651 (2007).

    Article 
    CAS 

    Google Scholar 

  • 68

    Man, X. Y., Yang, X. H., Cai, S. Q., Bu, Z. Y. & Zheng, M. Overexpression of vascular endothelial growth factor (VEGF) receptors on keratinocytes in psoriasis: regulated by calcium independent of VEGF. J. Cell. Mol. Med. 12, 649–660 (2008).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 69

    Tauber, M. et al. IL36RN mutations affect protein expression and function: a basis for genotype–phenotype correlation in pustular diseases. J. Invest. Dermatol. 136, 1811–1819 (2016).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 70

    Lizzul, P. F. et al. Differential expression of phosphorylated NF-κB/RelA in normal and psoriatic epidermis and downregulation of NF-κB in response to treatment with etanercept. J. Invest. Dermatol. 124, 1275–1283 (2005).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 71

    Raphael, I., Nalawade, S., Eagar, T. N. & Forsthuber, T. G. T cell subsets and their signature cytokines in autoimmune and inflammatory diseases. Cytokine 74, 5–17 (2015). This is an overview of the role of TH cell subsets and associated cytokine profiles in the development of inflammatory diseases, including psoriasis, in which T cell activity has a central function.

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 72

    Zhu, J. & Paul, W. E. Heterogeneity and plasticity of T helper cells. Cell Res. 20, 4–12 (2010).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 73

    Chiricozzi, A. et al. IL-17 induces an expanded range of downstream genes in reconstituted human epidermis model. PLoS ONE 9, e90284 (2014).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 74

    Nestle, F. O. et al. Plasmacytoid predendritic cells initiate psoriasis through interferon-α production. J. Exp. Med. 202, 135–143 (2005).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 75

    Gladman, D. D. Clinical features and diagnostic considerations in psoriatic arthritis. Rheum. Dis. Clin. North Am. 41, 569–579 (2015).

    Article 
    PubMed 

    Google Scholar 

  • 76

    Feldman, S. R. & Krueger, G. G. Psoriasis assessment tools in clinical trials. Ann. Rheum. Dis. 64 (Suppl. 2), ii65–ii68; discussion ii69–ii73 (2005).

    PubMed 
    PubMed Central 

    Google Scholar 

  • 77

    Samman, P. D. & Fenton, D. A. Samman’s The Nails in Disease 5th edn (Butterworth-Heinemann, 1995).

    Google Scholar 

  • 78

    Menter, A. et al. Guidelines of care for the management of psoriasis and psoriatic arthritis: section 1. Overview of psoriasis and guidelines of care for the treatment of psoriasis with biologics. J. Am. Acad. Dermatol. 58, 826–850 (2008).

    Article 
    PubMed 

    Google Scholar 

  • 79

    Gladman, D. D. & Rosen, C. T. Psoriatic Arthritis (The Facts) (Oxford Univ. Press, 2008).

    Google Scholar 

  • 80

    Haroon, M., Kirby, B. & FitzGerald, O. High prevalence of psoriatic arthritis in patients with severe psoriasis with suboptimal performance of screening questionnaires. Ann. Rheum. Dis. 72, 736–740 (2013).

    Article 
    PubMed 

    Google Scholar 

  • 81

    Eder, L., Chandran, V. & Gladman, D. D. What have we learned about genetic susceptibility in psoriasis and psoriatic arthritis? Curr. Opin. Rheumatol 27, 91–98 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 82

    Chandran, V. et al. Soluble biomarkers differentiate patients with psoriatic arthritis from those with psoriasis without arthritis. Rheumatology (Oxford) 49, 1399–1405 (2010).

    Article 
    CAS 

    Google Scholar 

  • 83

    Ritchlin, C. T. et al. Treatment recommendations for psoriatic arthritis. Ann. Rheum. Dis. 68, 1387–1394 (2009).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 84

    Taylor, W. et al. Classification criteria for psoriatic arthritis: development of new criteria from a large international study. Arthritis Rheum. 54, 2665–2673 (2006).

    Article 
    PubMed 

    Google Scholar 

  • 85

    Haroon, M., Gallagher, P. & FitzGerald, O. Diagnostic delay of more than 6 months contributes to poor radiographic and functional outcome in psoriatic arthritis. Ann. Rheum. Dis. 74, 1045–1050 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 86

    Wilson, P. W. et al. Prediction of coronary heart disease using risk factor categories. Circulation 97, 1837–1847 (1998).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 87

    Mehta, N. N. et al. Attributable risk estimate of severe psoriasis on major cardiovascular events. Am. J. Med. 124, 775.e1–775.e6 (2011). This retrospective, cohort study demonstrates the absolute risk of major adverse cardiovascular events in patients with psoriasis, particularly those with severe cutaneous involvement, compared with the general population.

    Article 

    Google Scholar 

  • 88

    Goff, D. C. et al. 2013 ACC/AHA guideline on the assessment of cardiovascular risk: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines. Circulation 129, S49–S73 (2014).

    Article 
    PubMed 

    Google Scholar 

  • 89

    European Association for Cardiovascular Prevention & Rehabilitation et al. ESC/EAS Guidelines for the management of dyslipidaemias: the Task Force for the management of dyslipidaemias of the European Society of Cardiology (ESC) and the European Atherosclerosis Society (EAS). Eur. Heart J. 32, 1769–1818 (2011).

    Article 

    Google Scholar 

  • 90

    Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults. Executive Summary of The Third Report of The National Cholesterol Education Program (NCEP) Expert Panel on Detection, Evaluation, And Treatment of High Blood Cholesterol In Adults (Adult Treatment Panel III). JAMA 285, 2486–2497 (2001).

    Article 

    Google Scholar 

  • 91

    Jokai, H. et al. Impact of effective tumor necrosis factor-alfa inhibitor treatment on arterial intima-media thickness in psoriasis: results of a pilot study. J. Am. Acad. Dermatol. 69, 523–529 (2013).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 92

    Bissonnette, R. et al. Effects of the tumor necrosis factor-alpha antagonist adalimumab on arterial inflammation assessed by positron emission tomography in patients with psoriasis: results of a randomized controlled trial. Circ. Cardiovasc. Imaging 6, 83–90 (2013).

    Article 
    PubMed 

    Google Scholar 

  • 93

    Wu, J. J., Poon, K. Y., Channual, J. C. & Shen, A. Y. Association between tumor necrosis factor inhibitor therapy and myocardial infarction risk in patients with psoriasis. Arch. Dermatol. 148, 1244–1250 (2012). This cohort study demonstrates a decreased risk of myocardial infarction among patients with psoriasis who were treated with TNF inhibitors, with key implications about the potential systemic effect of psoriasis and the broader role of treatments on patient health.

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 94

    US National Library of Medicine. ClinicalTrials.govhttps://clinicaltrials.gov/ct2/show/NCT01553058 (2016).

  • 95

    US National Library of Medicine. ClinicalTrials.govhttps://clinicaltrials.gov/ct2/show/NCT02187172 (2016).

  • 96

    American Academy of Dermatology Work Group et al. Guidelines of care for the management of psoriasis and psoriatic arthritis: section 6. Guidelines of care for the treatment of psoriasis and psoriatic arthritis: case-based presentations and evidence-based conclusions. J. Am. Acad. Dermatol. 65, 137–174 (2011). This is the most recent set of treatment guidelines produced by leaders in the field of psoriasis, with a set of case-based examples to illustrate evidence-based recommendations.

    Article 

    Google Scholar 

  • 97

    Nast, A. et al. European S3-guidelines on the systemic treatment of psoriasis vulgaris — update 2015 — short version — EDF in cooperation with EADV and IPC. J. Eur.Acad. Dermatol. Venereol. 29, 2277–2294 (2015). This is a set of guidelines from an international group of dermatologists with graded recommendations for systemic treatments of psoriasis.

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 98

    McGill, A. et al. The anti-psoriatic drug anthralin accumulates in keratinocyte mitochondria, dissipates mitochondrial membrane potential, and induces apoptosis through a pathway dependent on respiratory competent mitochondria. FASEB J. 19, 1012–1014 (2005).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 99

    Arbiser, J. L. et al. Carbazole is a naturally occurring inhibitor of angiogenesis and inflammation isolated from antipsoriatic coal tar. J. Invest. Dermatol. 126, 1396–1402 (2006).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 100

    Rizova, E. & Corroller, M. Topical calcitriol — studies on local tolerance and systemic safety. Br. J. Dermatol. 144 (Suppl. 58), 3–10 (2001).

    CAS 
    PubMed 

    Google Scholar 

  • 101

    Lebwohl, M. G. et al. Tazarotene 0. 1% gel plus corticosteroid cream in the treatment of plaque psoriasis. J. Am. Acad. Dermatol. 39, 590–596 (1998).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 102

    Freeman, A. K. et al. Tacrolimus ointment for the treatment of psoriasis on the face and intertriginous areas. J. Am. Acad. Dermatol. 48, 564–568 (2003).

    Article 
    PubMed 

    Google Scholar 

  • 103

    Tartar, D., Bhutani, T., Huynh, M., Berger, T. & Koo, J. Update on the immunological mechanism of action behind phototherapy. J. Drugs Dermatol. 13, 564–568 (2014).

    CAS 
    PubMed 

    Google Scholar 

  • 104

    Goeckerman, W. H. Treatment of psoriasis. Northwest Med. 24, 229–231 (1925).

    Google Scholar 

  • 105

    Pittelkow, M. R. et al. Skin cancer in patients with psoriasis treated with coal tar. A 25-year follow-up study. Arch. Dermatol. 117, 465–468 (1981).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 106

    Nolan, B. V., Yentzer, B. A. & Feldman, S. R. A review of home phototherapy for psoriasis. Dermatol. Online J. 16, 1 (2010).

    PubMed 

    Google Scholar 

  • 107

    Stern, R. S. & PUVA Follow-Up Study. The risk of squamous cell and basal cell cancer associated with psoralen and ultraviolet A therapy: a 30-year prospective study. J. Am. Acad. Dermatol. 66, 553–562 (2012).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 108

    Stern, R. S. & PUVA Follow-Up Study. The risk of melanoma in association with long-term exposure to PUVA. J. Am. Acad. Dermatol. 44, 755–761 (2001).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 109

    Menter, A. et al. Guidelines of care for the management of psoriasis and psoriatic arthritis: section 4. Guidelines of care for the management and treatment of psoriasis with traditional systemic agents. J. Am. Acad. Dermatol. 61, 451–485 (2009).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 110

    Cronstein, B. N., Naime, D. & Ostad, E. The antiinflammatory mechanism of methotrexate. Increased adenosine release at inflamed sites diminishes leukocyte accumulation in an in vivo model of inflammation. J. Clin. Invest. 92, 2675–2682 (1993).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 111

    Majumdar, S. & Aggarwal, B. B. Methotrexate suppresses NF-κB activation through inhibition of IκBα phosphorylation and degradation. J. Immunol. 167, 2911–2920 (2001).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 112

    Goldminz, A. M. et al. Methotrexate improves pro- and anti-atherogenic genomic expression in psoriatic skin. J. Dermatol. Sci. 82, 207–209 (2016).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 113

    Gutierrez-Urena, S., Molina, J. F., Garcia, C. O., Cuellar, M. L. & Espinoza, L. R. Pancytopenia secondary to methotrexate therapy in rheumatoid arthritis. Arthritis Rheum. 39, 272–276 (1996).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 114

    Al-Quteimat, O. M. & Al-Badaineh, M. A. Methotrexate and trimethoprim-sulphamethoxazole: extremely serious and life-threatening combination. J. Clin. Pharm. Ther. 38, 203–205 (2013).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 115

    Rosenberg, P. et al. Psoriasis patients with diabetes type 2 are at high risk of developing liver fibrosis during methotrexate treatment. J. Hepatol. 46, 1111–1118 (2007).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 116

    Kalb, R. E., Strober, B., Weinstein, G. & Lebwohl, M. Methotrexate and psoriasis: consensus conference. J. Am. Acad. Dermatol. 64, 1179 (2011).

    Article 
    PubMed 

    Google Scholar 

  • 117

    Boffa, M. J. et al. Serum type III procollagen aminopeptide for assessing liver damage in methotrexate-treated psoriatic patients. Br. J. Dermatol. 135, 538–544 (1996).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 118

    Raposo, I. & Torres, T. Palmoplantar psoriasis and palmoplantar pustulosis: current treatment and future prospects. Am. J. Clin. Dermatol. 17, 349–358 (2016).

    Article 
    PubMed 

    Google Scholar 

  • 119

    Lebwohl, M. et al. Consensus conference: acitretin in combination with UVB or PUVA in the treatment of psoriasis. J. Am. Acad. Dermatol. 45, 544–553 (2001).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 120

    Niu, X. et al. Acitretin exerted a greater influence on T-helper (Th)1 and Th27 than on Th3 cells in treatment of psoriasis vulgaris. J. Dermatol. 39, 916–921 (2012).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 121

    Katz, H. I., Waalen, J. & Leach, E. E. Acitretin in psoriasis: an overview of adverse effects. J. Am. Acad. Dermatol. 41, S7–S12 (1999).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 122

    Amor, K. T., Ryan, C. & Menter, A. The use of cyclosporine in dermatology: part I. J. Am. Acad. Dermatol. 63, 925–946 (2010).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 123

    Zachariae, H., Kragballe, K., Hansen, H. E., Marcussen, N. & Olsen, S. Renal biopsy findings in long-term cyclosporin treatment of psoriasis. Br. J. Dermatol. 136, 531–535 (1997).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 124

    Schafer, P. Apremilast mechanism of action and application to psoriasis and psoriatic arthritis. Biochem. Pharmacol. 83, 1583–1590 (2012).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 125

    Paul, C. et al. Efficacy and safety of apremilast, an oral phosphodiesterase 4 inhibitor, in patients with moderate-to-severe plaque psoriasis over 52 weeks: a phase III, randomized controlled trial (ESTEEM 2). Br. J. Dermatol. 173, 1387–1399 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 126

    Papp, K. et al. Apremilast, an oral phosphodiesterase 4 (PDE4) inhibitor, in patients with moderate to severe plaque psoriasis: results of a phase III, randomized, controlled trial (Efficacy and Safety Trial Evaluating the Effects of Apremilast in Psoriasis [ESTEEM] 1). J. Am. Acad. Dermatol. 73, 37–49 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 127

    Atwan, A. et al. Oral fumaric acid esters for psoriasis: abridged Cochrane systematic review including GRADE assessments. Br. J. Dermatol. 175, 873–881 (2016).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 128

    Ghoreschi, K. et al. Fumarates improve psoriasis and multiple sclerosis by inducing type II dendritic cells. J. Exp. Med. 208, 2291–2303 (2011).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 129

    Zweegers, J. et al. Body mass index predicts discontinuation due to ineffectiveness and female sex predicts discontinuation due to side-effects in patients with psoriasis treated with adalimumab, etanercept or ustekinumab in daily practice: a prospective, comparative, long-term drug-survival study from the BioCAPTURE registry. Br. J. Dermatol. 175, 340–347 (2016).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 130

    Gottlieb, A. et al. Guidelines of care for the management of psoriasis and psoriatic arthritis: section 2. Psoriatic arthritis: overview and guidelines of care for treatment with an emphasis on the biologics. J. Am. Acad. Dermatol. 58, 851–864 (2008).

    Article 
    PubMed 

    Google Scholar 

  • 131

    Dixon, W. G. et al. Reduction in the incidence of myocardial infarction in patients with rheumatoid arthritis who respond to anti-tumor necrosis factor alpha therapy: results from the British Society for Rheumatology Biologics Register. Arthritis Rheum. 56, 2905–2912 (2007).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 132

    Hoffman, M. B., Farhangian, M. & Feldman, S. R. Psoriasis during pregnancy: characteristics and important management recommendations. Expert Rev. Clin. Immunol. 11, 709–720 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 133

    Bongartz, T. et al. Anti-TNF antibody therapy in rheumatoid arthritis and the risk of serious infections and malignancies: systematic review and meta-analysis of rare harmful effects in randomized controlled trials. JAMA 295, 2275–2285 (2006).

    Article 
    CAS 

    Google Scholar 

  • 134

    Papp, K. A. et al. Long-term safety of ustekinumab in patients with moderate-to-severe psoriasis: final results from 5 years of follow-up. Br. J. Dermatol. 168, 844–854 (2013)

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 135

    Collamer, A. N., Guerrero, K. T., Henning, J. S. & Battafarano, D. F. Psoriatic skin lesions induced by tumor necrosis factor antagonist therapy: a literature review and potential mechanisms of action. Arthritis Rheum. 59, 996–1001 (2008).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 136

    Doherty, S. D. et al. National Psoriasis Foundation consensus statement on screening for latent tuberculosis infection in patients with psoriasis treated with systemic and biologic agents. J. Am. Acad. Dermatol. 59, 209–217 (2008).

    Article 
    PubMed 

    Google Scholar 

  • 137

    Kavanaugh, A. et al. Maintenance of clinical efficacy and radiographic benefit through two years of ustekinumab therapy in patients with active psoriatic arthritis: results from a randomized, placebo-controlled phase III trial. Arthritis Care Res. (Hoboken) 67, 1739–1749 (2015).

    Article 
    CAS 

    Google Scholar 

  • 138

    McInnes, I. B. et al. Secukinumab, a human anti-interleukin-17A monoclonal antibody, in patients with psoriatic arthritis (FUTURE 2): a randomised, double-blind, placebo-controlled, phase 3 trial. Lancet 386, 1137–1146 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 139

    Elyoussfi, S., Thomas, B. J. & Ciurtin, C. Tailored treatment options for patients with psoriatic arthritis and psoriasis: review of established and new biologic and small molecule therapies. Rheumatol. Int. 36, 603–612 (2016).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 140

    Mease, P. J. et al. Brodalumab, an anti-IL17RA monoclonal antibody, in psoriatic arthritis. N. Engl. J. Med. 370, 2295–2306 (2014).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 141

    Lebwohl, M. et al. Phase 3 studies comparing brodalumab with ustekinumab in psoriasis. N. Engl. J. Med. 373, 1318–1328 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 142

    Ling, Y. & Puel, A. IL-17 and infections. Actas Dermosifiliogr. 105 (Suppl. 1), 34–40 (2014).

    Article 
    PubMed 

    Google Scholar 

  • 143

    Papp, K. A. et al. A prospective phase III, randomized, double-blind, placebo-controlled study of brodalumab in patients with moderate-to-severe plaque psoriasis. Br. J. Dermatol. 175, 273–286 (2016).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 144

    Sicotte, N. L. & Voskuhl, R. R. Onset of multiple sclerosis associated with anti-TNF therapy. Neurology 57, 1885–1888 (2001).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 145

    Young, M. S., Horn, E. J. & Cather, J. C. The ACCEPT study: ustekinumab versus etanercept in moderate-to-severe psoriasis patients. Expert Rev. Clin. Immunol. 7, 9–13 (2011).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 146

    Thaci, D. et al. Secukinumab is superior to ustekinumab in clearing skin of subjects with moderate to severe plaque psoriasis: CLEAR, a randomized controlled trial. J. Am. Acad. Dermatol. 73, 400–409 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 147

    Betts, K. A., Mittal, M., Joshi, A., Song, J. & Bao, Y. Relative efficacy of adalimumab versus secukinumab in active psoriatic arthritis: a matching-adjusted indirect comparison. Arthritis Rheumatol. Abstr. 67 (Suppl. 10), 2868 (2015).

    Google Scholar 

  • 148

    Hsu, L., Snodgrass, B. T. & Armstrong, A. W. Antidrug antibodies in psoriasis: a systematic review. Br. J. Dermatol. 170, 261–273 (2014).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 149

    Dapavo, P., Vujic, I., Fierro, M. T., Quaglino, P. & Sanlorenzo, M. The infliximab biosimilar in the treatment of moderate to severe plaque psoriasis. J. Am. Acad. Dermatol. 75, 736–739 (2016).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 150

    Red. [First biosimilar etanercept is available]. MMW Fortschritte der Medizin 158, 82 (in German) (2016).

    PubMed 

    Google Scholar 

  • 151

    de Korte, J., Sprangers, M. A., Mombers, F. M. & Bos, J. D. Quality of life in patients with psoriasis: a systematic literature review. J. Invest. Dermatol. Symp. Proc. 9, 140–147 (2004).

    Article 

    Google Scholar 

  • 152

    Lee, Y. W., Park, E. J., Kwon, I. H., Kim, K. H. & Kim, K. J. Impact of psoriasis on quality of life: relationship between clinical response to therapy and change in health-related quality of life. Ann. Dermatol. 22, 389–396 (2010). This prospective, cohort study demonstrates the improvement in patients’ health-related QOL measures after treatment, and elucidates key factors that make psoriasis more burdensome, emphasizing the important role of health care providers and the profound effect of psoriasis treatments on disease burden.

    Article 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 153

    Bhatti, Z. U. et al. Chronic disease influences over 40 major life-changing decisions (MLCDs): a qualitative study in dermatology and general medicine. J. Eur. Acad. Dermatol. Venereol. 28, 1344–1355 (2014).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 154

    Eghlileb, A. M., Davies, E. E. & Finlay, A. Y. Psoriasis has a major secondary impact on the lives of family members and partners. Br. J. Dermatol. 156, 1245–1250 (2007).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 155

    Iskandar, I. Y. et al. Demographics and disease characteristics of patients with psoriasis enrolled in the British Association of Dermatologists Biologic Interventions Register. Br. J. Dermatol. 173, 510–518 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 156

    Basra, M. K., Fenech, R., Gatt, R. M., Salek, M. S. & Finlay, A. Y. The Dermatology Life Quality Index 1994–2007: a comprehensive review of validation data and clinical results. Br. J. Dermatol. 159, 997–1035 (2008).

    CAS 
    PubMed 

    Google Scholar 

  • 157

    Finlay, A. Y. Current severe psoriasis and the rule of tens. Br. J. Dermatol. 152, 861–867 (2005).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 158

    Ali, F. M. et al. A systematic review of the use of quality of life instruments in randomised controlled trials of psoriasis. Br J. Dermatol. http://dx.doi.org/10.1111/bjd.14788 (2016).

  • 159

    Moller, A. H., Erntoft, S., Vinding, G. R. & Jemec, G. B. A systematic literature review to compare quality of life in psoriasis with other chronic diseases using EQ-5D-derived utility values. Patient Relat. Outcome Meas. 6, 167–177 (2015). This systematic review demonstrates that the burden of psoriatic disease is comparable to that of other chronic diseases, including cardiovascular disease and diabetes.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 160

    Takahashi, H., Iinuma, S., Tsuji, H., Honma, M. & Iizuka, H. Biologics are more potent than other treatment modalities for improvement of quality of life in psoriasis patients. J. Dermatol. 41, 686–689 (2014).

    Article 
    PubMed 

    Google Scholar 

  • 161

    Stein, K. R., Pearce, D. J. & Feldman, S. R. The impact of biologics on the quality of life of psoriasis patients and the economics of psoriasis care. Semin. Cutan. Med. Surg. 24, 52–57 (2005).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 162

    Larsen, M. H., Hagen, K. B., Krogstad, A. L., Aas, E. & Wahl, A. K. Limited evidence of the effects of patient education and self-management interventions in psoriasis patients: a systematic review. Patient Educ. Couns. 94, 158–169 (2014).

    Article 
    PubMed 

    Google Scholar 

  • 163

    Gedebjerg, A., Johansen, C., Kragballe, K. & Iversen, L. IL-20, IL-21 and p40: potential biomarkers of treatment response for ustekinumab. Acta Derm. Venereol. 93, 150–155 (2013).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 164

    Ryan, C. et al. Research gaps in psoriasis: opportunities for future studies. J. Am. Acad. Dermatol. 70, 146–167 (2014).

    Article 
    PubMed 

    Google Scholar 

  • 165

    Armstrong, A. W., Gelfand, J. M., Boehncke, W. H. & Armstrong, E. J. Cardiovascular comorbidities of psoriasis and psoriatic arthritis: a report from the GRAPPA 2012 annual meeting. J. Rheumatol. 40, 1434–1437 (2013).

    Article 
    PubMed 

    Google Scholar 

  • 166

    Kirkham, B. et al. Early treatment of psoriatic arthritis is associated with improved patient-reported outcomes: findings from the etanercept PRESTA trial. Clin. Exp. Rheumatol. 33, 11–19 (2015).

    PubMed 

    Google Scholar 

  • 167

    Kimball, A. B. et al. National Psoriasis Foundation clinical consensus on psoriasis comorbidities and recommendations for screening. J. Am. Acad. Dermatol. 58, 1031–1042 (2008).

    Article 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 168

    Capon, F. & Barker, J. N. The quest for psoriasis susceptibility genes in the postgenome-wide association studies era: charting the road ahead. Br. J. Dermatol. 166, 1173–1175 (2012).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 169

    Alwan, W. & Nestle, F. O. Pathogenesis and treatment of psoriasis: exploiting pathophysiological pathways for precision medicine. Clin. Exp. Rheumatol 33, S2–S6 (2015). This review elucidates future areas of psoriasis research based on the trend towards highly precise targeted therapies.

    PubMed 

    Google Scholar 

  • 170

    Zweegers, J. et al. Effectiveness of biologic and conventional systemic therapies in adults with chronic plaque psoriasis in daily practice: a systematic review. Acta Derm. Venereol. 96, 453–458 (2016).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 171

    De Mozzi, P., Johnston, G. A., Alexandroff, A. B. Psoriasis: an evidence-based update. Report of the 9th evidenced based update meeting, 12 May 2011, Loughborough, UK. Br. J. Dermatol. 166, 252–260 (2012).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 172

    Eissing, L., Radtke, M. A., Zander, N. & Augustin, M. Barriers to guideline-compliant psoriasis care: analyses and concepts. J. Eur. Acad. Dermatol. Venereol. 30, 569–575 (2016).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 173

    FitzGerald, O. & Mease, P. J. Biomarkers: project update from the GRAPPA 2012 annual meeting. J. Rheumatol. 40, 1453–1454 (2013).

    Article 
    PubMed 

    Google Scholar 

  • 174

    FitzGerald, O., Mease, P. J., Helliwell, P. S. & Chandran, V. GRAPPA 2013 annual meeting, rheumatology updates: psoriatic arthritis (PsA) biomarker project, arthritis mutilans, PsA-peripheral spondyloarthritis epidemiology project. J. Rheumatol. 41, 1244–1248 (2014).

    Article 
    PubMed 

    Google Scholar 

  • 175

    Villanova, F., Di Meglio, P. & Nestle, F. O. Biomarkers in psoriasis and psoriatic arthritis. Ann. Rheum. Dis. 72 (Suppl. 2), ii104–ii110 (2013).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 176

    Armstrong, A. W., Robertson, A. D., Wu, J., Schupp, C. & Lebwohl, M. G. Undertreatment, treatment trends, and treatment dissatisfaction among patients with psoriasis and psoriatic arthritis in the United States: findings from the National Psoriasis Foundation surveys, 2003–2011. JAMA Dermatol. 149, 1180–1185 (2013).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 177

    Croughan, M. S., Konstantinov, K. B. & Cooney, C. The future of industrial bioprocessing: batch or continuous? Biotechnol. Bioeng. 112, 648–651 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 178

    Gottlieb, A. B. et al. The International Dermatology Outcome Measures Group: formation of patient-centered outcome measures in dermatology. J. Am. Acad. Dermatol. 72, 345–348 (2015).

    Article 
    PubMed 

    Google Scholar 

  • 179

    Tan, K. W. & Griffiths, C. E. Novel systemic therapies for the treatment of psoriasis. Expert Opin. Pharmacother. 17, 79–92 (2016).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 180

    Feely, M. A., Smith, B. L. & Weinberg, J. M. Novel psoriasis therapies and patient outcomes, part 1: topical medications. Cutis 95, 164–168, 170 (2015).

    PubMed 

    Google Scholar 

  • 181

    Rahman, M. et al. Nanomedicine-based drug targeting for psoriasis: potentials and emerging trends in nanoscale pharmacotherapy. Expert Opin. Drug Deliv. 12, 635–652 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 182

    Yin, X. et al. A weighted polygenic risk score using 14 known susceptibility variants to estimate risk and age onset of psoriasis in Han Chinese. PLoS ONE 10, e0125369 (2015).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 183

    Latchman, D. S. Transcription-factor mutations and disease. N. Engl. J. Med. 334, 28–33 (1996).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 184

    Sano, S. et al. Stat3 links activated keratinocytes and immunocytes required for development of psoriasis in a novel transgenic mouse model. Nat. Med. 11, 43–49 (2005).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 185

    Kryczek, I. et al. Induction of IL-17+ T cell trafficking and development by IFN-γ: mechanism and pathological relevance in psoriasis. J. Immunol. 181, 4733–4741 (2008).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 186

    Harden, J. L. et al. Humanized anti-IFN-γ (HuZAF) in the treatment of psoriasis. J. Allergy Clin. Immunol. 135, 553–556 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 187

    National Psoriasis Foundation. Drug pipeline 2016. National Psoriasis Foundationhttps://services.psoriasis.org/drug-pipeline/index.php (accessed 7 Oct 2016).

  • 188

    Papp, K. A. et al. Efficacy and safety of ustekinumab, a human interleukin-12/23 monoclonal antibody, in patients with psoriasis: 52-week results from a randomised, double-blind, placebo-controlled trial (PHOENIX 2). Lancet 371, 1675–1684 (2008).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 189

    Baldassare, J. J., Fisher, G. J., Henderson, P. A. & Voorhees, J. J. Epidermal growth factor (EGF) stimulates phosphatidylcholine hydrolysis by phospholipases c and d in human dermal fibroblasts (meeting abstract). FASEB J. 4, A2059 (1990).

    Google Scholar 

  • 190

    Mease, P. J., Garg, A., Helliwell, P. S., Park, J. J. & Gladman, D. D. Development of criteria to distinguish inflammatory from noninflammatory arthritis, enthesitis, dactylitis, and spondylitis: a report from the GRAPPA 2013 annual meeting. J. Rheumatol. 41, 1249–1251 (2014).

    Article 
    PubMed 

    Google Scholar 

  • 191

    Gladman, D. D., Helliwell, P. S., Khraishi, M., Callis Duffin, K. & Mease, P. J. Dermatology screening tools: project update from the GRAPPA 2012 annual meeting. J. Rheumatol. 40, 1425–1427 (2013).

    Article 
    PubMed 

    Google Scholar 

  • 192

    Tom, B. D., Chandran, V., Farewell, V. T., Rosen, C. F. & Gladman, D. D. Validation of the Toronto Psoriatic Arthritis Screen Version 2 (ToPAS 2). J. Rheumatol. 42, 841–846 (2015).

    Article 
    PubMed 

    Google Scholar 

  • 193

    Bronsard, V. et al. What are the best outcome measures for assessing quality of life in plaque type psoriasis? A systematic review of the literature. J. Eur. Acad. Dermatol. Venereol. 24 (Suppl. 2), 17–22 (2010).

    Article 
    PubMed 

    Google Scholar 

  • 194

    Pedersen, C. B. et al. Reliability and validity of the Psoriasis Itch Visual Analog Scale in psoriasis vulgaris. J. Dermatol. Treat. 5 Sept 2016 [epub ahead of print].

  • 195

    Bushnell, D. M. et al. Validation of the Psoriasis Symptom Inventory (PSI), a patient-reported outcome measure to assess psoriasis symptom severity. J. Dermatol. Treat. 24, 356–360 (2013).

    Article 

    Google Scholar 

  • 196

    Fotiou, K., Hofmann, M., Kaufmann, R. & Thaci, D. Pictorial representation of illness and self measure (PRISM): an effective tool to assess the burden of psoriasis. J. Eur. Acad. Dermatol. Venereol. 29, 2356–2362 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 197

    Holme, S. A. et al. The Children’s Dermatology Life Quality Index: validation of the cartoon version. Br. J. Dermatol. 148, 285–290 (2003).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 198

    Eghlileb, A. M., Basra, M. K. & Finlay, A. Y. The Psoriasis Family Index: preliminary results of validation of a quality of life instrument for family members of patients with psoriasis. Dermatology 219, 63–70 (2009).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 199

    Finlay, A. Y., Salek, S. S. & Piguet, V. Measuring family impact of skin diseases: FDLQI and FROM-16. Acta Derm. Venereol. 95, 1036 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 200

    Jacobson, C. C., Kumar, S. & Kimball, A. B. Latitude and psoriasis prevalence. J. Am. Acad. Dermatol. 65, 870–873 (2011).

    Article 
    PubMed 

    Google Scholar 

  • 201

    Williams, H. C. & Strachan, D. P. The Challenge of Dermato-Epidemiology (CRC Press, 1997).

    Google Scholar 

  • 202

    Grob, J. J. in Textbook of Psoriasis (ed. van de Kerkhof, P. C. M. ) 57–69 (Blackwell Publishing, 2003).

    Book 

    Google Scholar 

  • 203

    Yip, S. Y. The prevalence of psoriasis in the Mongoloid race. J. Am. Acad. Dermatol. 10, 965–968 (1984).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 204

    International Psoriasis Council. IPC psoriasis review. IPChttp://www.psoriasiscouncil.org/docs/ipc_review_2016-july_final.pdf (2016).

  • 205

    Alexis, A. F. & Blackcloud, P. Psoriasis in skin of color: epidemiology, genetics, clinical presentation, and treatment nuances. J. Clin. Aesthet. Dermatol. 7, 16–24 (2014).

    PubMed 
    PubMed Central 

    Google Scholar 

  • 206

    International Psoriasis Council. IPC psoriasis review focus on Latin America. IPChttp://www.psoriasiscouncil.org/docs/ipcpsoriasisreview_dec_2009_english.pdf?LanguageID=EN-US (2009).

  • 207

    Imafuku, S., Naito, R. & Nakayama, J. Possible association of hepatitis C virus infection with late-onset psoriasis: a hospital-based observational study. J. Dermatol. 40, 813–818 (2013).

    CAS 
    PubMed 

    Google Scholar 

  • 208

    Kim, T. G. et al. Dermal clusters of mature dendritic cells and T cells are associated with the CCL20/CCR6 chemokine system in chronic psoriasis. J. Invest. Dermatol. 134, 1462–1465 (2014).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 209

    Mease, P. J. et al. Continued inhibition of radiographic progression in patients with psoriatic arthritis following 2 years of treatment with etanercept. J. Rheumatol. 33, 712–721 (2006).

    CAS 
    PubMed 

    Google Scholar 

  • 210

    Leonardi, C. L. et al. Etanercept as monotherapy in patients with psoriasis. N. Engl. J. Med. 349, 2014–2022 (2003).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 211

    Gordon, K. B. et al. Clinical response to adalimumab treatment in patients with moderate to severe psoriasis: double-blind, randomized controlled trial and open-label extension study. J. Am. Acad. Dermatol. 55, 598–606 (2006).

    Article 
    PubMed 

    Google Scholar 

  • 212

    Mease, P. J. et al. Adalimumab for the treatment of patients with moderately to severely active psoriatic arthritis: results of a double-blind, randomized, placebo-controlled trial. Arthritis Rheum. 52, 3279–3289 (2005).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 213

    Kavanaugh, A. et al. The Infliximab Multinational Psoriatic Arthritis Controlled Trial (IMPACT): results of radiographic analyses after 1 year. Ann. Rheum. Dis. 65, 1038–1043 (2006).

    Article 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 214

    Chaudhari, U. et al. Efficacy and safety of infliximab monotherapy for plaque-type psoriasis: a randomised trial. Lancet 357, 1842–1847 (2001).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 215

    Gottlieb, A. B. et al. Infliximab induction therapy for patients with severe plaque-type psoriasis: a randomized, double-blind, placebo-controlled trial. J. Am. Acad. Dermatol. 51, 534–542 (2004).

    Article 
    PubMed 

    Google Scholar 

  • 216

    Salmon-Ceron, D. et al. Drug-specific risk of non-tuberculosis opportunistic infections in patients receiving anti-TNF therapy reported to the 3-year prospective French RATIO registry. Ann. Rheum. Dis. 70, 616–623 (2011).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 217

    Reich, K. et al. Successful treatment of moderate to severe plaque psoriasis with the PEGylated Fab’ certolizumab pegol: results of a phase II randomized, placebo-controlled trial with a re-treatment extension. Br. J. Dermatol. 167, 180–190 (2012).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 218

    Mease, P. J. et al. Effect of certolizumab pegol on signs and symptoms in patients with psoriatic arthritis: 24-week results of a phase 3 double-blind randomised placebo-controlled study (RAPID-PsA). Ann. Rheum. Dis. 73, 48–55 (2014).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 219

    Kavanaugh, A. et al. Golimumab in psoriatic arthritis: one-year clinical efficacy, radiographic, and safety results from a phase III, randomized, placebo-controlled trial. Arthritis Rheum. 64, 2504–2517 (2012).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 220

    Langley, R. G. et al. Secukinumab in plaque psoriasis — results of two phase 3 trials. N. Engl. J. Med. 371, 326–338 (2014).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • 221

    Griffiths, C. E. et al. Comparison of ixekizumab with etanercept or placebo in moderate-to-severe psoriasis (UNCOVER-2 and UNCOVER-3): results from two phase 3 randomised trials. Lancet 386, 541–551 (2015).

    Article 
    CAS 
    PubMed 

    Google Scholar 

  • Plaque Psoriasis

    A 40-year-old man presented with itchy erythematous lesions on his arms and upper back of 10-month duration. There was no history of joint pain. Family history was negative for similar skin problems. Physical examination revealed erythematous plaques with scales on his arms and upper back. Scraping of the scales resulted in fine punctate bleeding. He also had pitting of the nails. Plaque psoriasis or psoriasis vulgaris is characterized by sharply demarcated, erythematous, round or oval, plaques with loosely adherent silvery-white micaceous scales. Removal of the scales results in fine punctate bleeding (Auspitz sign). The lesions are usually symmetrically distributed and pruritic.

    Typical sites include the knees, elbows, arms, torso, and scalp. Involvement of the scalp, face, and the intertriginous and diaper areas is more common in infants and young children. Skin lesions tend to persists for months to years and intermittent flares are common. New lesions may form at the site of trauma (Koebner phenomenon). Mucosal involvement is unusual. Seronegative inflammatory arthritis develops in about 30% of patients. Psoriatic arthritis can precede, coincide with, or follow the development of the skin lesions. Most patients eventually develop nail involvement which includes pitting, discoloration, onycholysis, or onychodystrophy. Nail involvement precedes the skin lesions in approximately 4% of patients. Complications of psoriasis include an increased risk of non-melanoma skin cancer and emotional distress in more severely affected individuals. Occasionally, patients with psoriasis may also develop uveitis and inflammatory bowel disease. Estimates of prevalence range from 1 to 2%. Approximately 25% of patients develop the disease before 20 years of age. Both sexes are affected equally. The condition is more common in Caucasian individuals than in black or Asian individuals. The prevalence is greatest in northern, colder climates, and the disease is more severe in the colder months. A family history of psoriasis in a first-degree relative is present in about 30% of patients with childhood-onset psoriasis.

     

    American Osteopathic College of Dermatology (AOCD)

    Calcipotriene (calcipotriol) is a synthetic drug derived from calcitriol otherwise known as vitamin D. It works by regulating the production and growth of skin cells. In the United States, this drug was first marketed under the trade name Dovonex and is used mainly for the treatment of psoriasis. This drug has many off-label applications that are alternative therapies for many dermatologic diseases.

    Mechanism: During a study on the effects of vitamin D on osteoporosis, the effect of calcipotriol on psoriasis was discovered. Some patients involved in this study included those with the presence of psoriatic lesions. During treatment with vitamin D analogs, the psoriatic lesions demonstrated significant reduction in number as compared to the number of lesions present before treatment was initiated.

    The exact mechanism of action is still unknown, however, calcipotriol has shown to inhibit cell growth and development without any evidence of harmful effects to the cell itself. This inhibition of cell growth reverses the number of abnormal cells which are found in patients with psoriasis. Calcipotriol demonstrates a regulatory role on the skin’s immune system, therefore reducing the expression of certain immune markers responsible for the development of psoriasis. In one study, patients applied calcipotriol ointment twice daily for 8 weeks. This study demonstrated marked improvement in 70% of patients and complete resolution of psoriasis in 11% of patients treated. The use of calcipotriol cream twice daily for 8 weeks had a slightly lower percentage of improvement and resolution but still considered significant at 50% and 4%, respectfully. Using twice daily application of calcipotriol has not been shown to be superior to once daily dosing in patients with psoriasis.

    Uses: Calcipotriol ointment and cream is approved for treatment of mild to moderate plaque psoriasis in adults older than 18 years old. Calcipotriol topical solution is approved to treat chronic, moderately severe scalp psoriasis. There are also many potential off-label uses of this medication including:

    Side effects: Studies have shown that calcipotriol has an excellent safety profile. It is associated with very few serious adverse effects and well tolerated among patients undergoing treatment. Mild side effects that have been reported with the use of prescribed doses of calcipotriol cream and ointment include, but are not limited to the following: skin atrophy, folliculitis, burning, irritation, itching, skin dryness, rash, hyperpigmentation, redness, and increased calcium levels in the blood and urine. Side effects that warrant immediate medical attention include worsening of psoriasis, development of a new skin rash, and dermatitis (redness and skin swelling associated with itching).

    Women planning to become pregnant or currently are pregnant should inform their physician before beginning a treatment regimen. Harmful effects on the fetus during pregnancy in animal studies have been observed, but there are currently no adequate studies in pregnant women using calcipotriol.

    Ultraviolet light exposure while using calcipotriol ointment or cream has been shown to increase the risk of skin tumor development. Those using calcipotriol should avoid excessive natural and artificial sunlight exposure while being treated with this medication. Hypercalcemia can also occur in patients using calcipotriol and should have calcium levels regularly monitored by a physician during the course of treatment.

     

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    Cutaneous Myiasis Caused by Chrysomya megacephala in an Infant with Psoriasis Vulgaris – FullText – Case Reports in Dermatology 2020, Vol. 12, No. 3

    Abstract

    Cutaneous myiasis is an infestation of the skin by fly larvae, which usually occurs in adults. We present a case of cutaneous myiasis caused by Chrysomya megacephalain a 3-month-old infant with psoriasis vulgaris. In this case report, we highlight the clinical, histopathologic, taxonomic identification, and treatment of cutaneous myiasis occurring in psoriatic skin.

    © 2020 The Author(s). Published by S. Karger AG, Basel


    Introduction

    Myiasis is an infestation of living tissue by fly larvae of the order Diptera[1]. Cutaneous myiasis can be subdivided into two main clinical subtypes, furuncular and wound myiasis [2]. Most of the cases are reported in adults and rarely in children [3]. A similar case was reported in which the larva penetrated the brain of a 5-month-old infant resulting in the demise of the patient [4]. We report a case of cutaneous myiasis caused by Chrysomya megacephala in an Asian infant with psoriasis vulgaris.

    Case Report

    A 3-month-old Thai girl presented with a 3-week history of generalized skin rash and developed a lump on the scalp after presenting with the primary rash for 2 weeks. Her grandmother had a history of psoriasis vulgaris, but she had no history of atopy in her family. Physical examination showed yellowish-brown crust and scale on an erythematous patch on the scalp, eyebrows, and ears and generalized, erythematous scaly plaques on the trunk (Fig. 1a) and extremities. The scalp showed a punctate wound at the vertex (Fig. 1b), containing many maggots (Fig. 1c, d). The scalp wound was debrided, and skin biopsy studies were performed. Dermatopathology showed typical psoriasis vulgaris at the epidermis and maggots in the subcutis (Fig. 2a–c). We sent the maggots for taxonomic identification by the Faculty of Medical Technology, Prince of Songkla University (Dr. Pengsakul). Worm size was 9 mm (Fig. 3a). The posterior spiracle (Fig. 3b), hook (Fig. 3c), and adult flies (Fig. 3d) developing from the maggots were identified as C. megacephala.

    Fig. 1.

    Clinical photographs. a Skin rash on the trunk and extremities. b Skin lesions and ulcer on the scalp. c Maggot removed from the wound. d Larvae.

    Fig. 2.

    Dermatopathology. a Low magnification showing psoriasiform at the epidermis and maggots in the subcutis. b High magnification of the epidermis showing psoriasiform hyperplasia, infiltration of neutrophils within the epidermis, and spongiform pustule of Kogoi. c High magnification of the subcutis presenting with maggots.

    Fig. 3.

    Taxonomic identification with Chrysomya megacephala.a Size of the worm. b Posterior spiracle. c Hook. d Adult fly.

    The diagnosis was furuncular myiasis caused by C. megacephala with underlying psoriasis vulgaris. Treatment involved manual removal of the larvae and 2 doses of oral ivermectin 200 μg/kg/dose. The latter treatment was started because the lesions contained a large number of worms which were difficult to manually remove. Her lesion improved without any adverse events from oral ivermectin.

    Discussion

    Furuncular myiasis is the most common form of primary cutaneous myiasis, and Cordylobia anthropophaga is the most common agent [1]. We report the first case of furuncular myiasis caused by C. megacephala, commonly known as the oriental latrine fly, in an infant with psoriasis. This fly also causes substantial economic problems in the Asia Pacific and Africa, where sun-drying is the primary method for preserving fish [5]. The first report of human myiasis caused by C. megacephala was in Thailand; however, this case was detected postmortem [6].

    Risk factors for cutaneous myiasis are poor hygiene with low socioeconomic status [7]. The complication of cutaneous myiasis is a secondary bacterial infection. It can penetrate the brain via incompletely ossified bone of the skull, particularly in an infant [4]. In this case report, the possible association between psoriasis and cutaneous myiasis explained by an infant developed psoriatic rash and occurring secondary cutaneous myiasis. The patient had a strong familial history of psoriasis and set generalized skin rash on the whole body before maggot infestations of the scalp. However, psoriasis often occurs provoked by infections and it is usually relatively resistant to a secondary infection. Previous reports proposed secondary infection of maggot on the children scalp resulting in traumatic psoriatic plaque [8, 9].

    Treatment of cutaneous myiasis include occlusion, manual removal of the larvae and larvicides [2, 3, 10]. In the pediatric population, there is no specific standard guideline treatment [11]. Occlusion and surgical intervention are recommended options. Ivermectin is not recommended in young children (<5 years of age or <15 kg) because of insufficient evidence [12]. However, a recent review showed ivermectin was well tolerated in the children without any evidence of severe or long-term side effects [13]. In this case, we manually removed the larvae and added oral ivermectin to the treatment. We treated with ivermectin because of inadequate treatment from surgical intervention. Adverse effects associated with ivermectin use include cutaneous and systemic effects such as rash, pruritus, myalgia, abdominal pain, hypotension, and dizziness [10, 12]. In this case, there were no adverse reactions noted secondary to ivermectin.

    In conclusion, we report this case to enhance recognition for the prevention of cutaneous myiasis and to provide adequate taxonomic identification for proper diagnosis and treatment when there is a high level of suspicion.

    Statement of Ethics

    Written informed consent to publish this case (including images) was obtained from the patient’s parents. The research was conducted ethically in accordance with the World Medical Association Declaration of Helsinki and was approved by the Research Ethics Committee, Faculty of Medicine, Prince of Songkla University (REC. 62-320-14-1).

    Conflict of Interest Statement

    There are no conflicts of interest.

    Funding Sources

    None.

    Author Contributions

    S.S. drafted the manuscript and K.A. revised it critically for important intellectual content. S.S., K.A., P.K. and T.P. were involved in the conception of this case report and gave final approval of the version published.

    References


    1. Bernhardt V, Finkelmeier F, Verhoff MA, Amendt J. Myiasis in humans-a global case report evaluation and literature analysis. Parasitol Res. 2019 Feb;118(2):389–97.


    2. Burkhart CN, Burkhart CG, Morrell DS. Infestations. In: Bolognia JL, Schaffer JV, Cerroni L, editors. Dermatology. 4th ed. China: Elsevier; 2018. pp. 1503–15.


    3. Calvopina M1 Ortiz-Prado E. Castañeda B, Cueva I, Rodriguez-Hidalgo R, Cooper PJ. Human myiasis in Ecuador. PLoS Negl Trop Dis. 2020;14:e0007858.


    4. Rossi MA, Zucoloto S. Fatal cerebral myiasis caused by the tropical warble fly, Dermatobia hominis. Am J Trop Med Hyg. 1973 Mar;22(2):267–9.


    5. Wall R, Howard JJ, Bindu J. The seasonal abundance of blowflies infesting drying fish in south-west India. J Appl Ecol. 2001;38(2):339–48.


    6. Sukontason KL, Narongchai P, Sripakdee D, Boonchu N, Chaiwong T, Ngern-Klun R, et al. First report of human myiasis caused by Chrysomya megacephala and Chrysomya rufifacies (Diptera: Calliphoridae) in Thailand, and its implication in forensic entomology. J Med Entomol. 2005 Jul;42(4):702–4.


    7. Fernandes LF, Pimenta FC, Fernandes FF. First report of human myiasis in GoiáS state, Brazil: frequency of different types of myiasis, their various etiological agents, and associated factors. J Parasitol. 2009 Feb;95(1):32–8.


    8. Mariwalla K, Langhan M, Welch KA, Kaplan DH. Cutaneous myiasis associated with scalp psoriasis. J Am Acad Dermatol. 2007 Aug;57(2 Suppl):S51–2.


    9. Pereyra-Rodríguez JJ, Bernabeu-Wittel J, Conejo-Mir MD, Ruiz-Pérez de Pipaón M, Conejo-Mir J. Treatment of cutaneous myiasis associated with scalp psoriasis in a 13-year-old girl with oral ivermectin. J Am Acad Dermatol. 2010 Nov;63(5):908–9.


    10. Francesconi F, Lupi O. Myiasis. Clin Microbiol Rev. 2012 Jan;25(1):79–105.


    11. Solomon M, Lachish T, Schwartz E. Cutaneous Myiasis. Curr Infect Dis Rep. 2016 Sep;18(9):28.


    12. Thomas C, Coates SJ, Engelman D, Chosidow O, Chang AY. Ectoparasites: scabies. J Am Acad Dermatol. 2020 Mar;82(3):533–48.


    13. Wilkins AL, Steer AC, Cranswick N, Gwee A. Question 1: is it safe to use ivermectin in children less than five years of age and weighing less than 15 kg? Arch Dis Child. 2018 May;103(5):514–9.

    Author Contacts

    Kumpol Aiempanakit

    Division of Dermatology, Department of Internal Medicine, Faculty of Medicine

    Prince of Songkla University

    Hat Yai, Songkhla 90110 (Thailand)

    [email protected]


    Article / Publication Details


    Received: May 27, 2020
    Accepted: October 29, 2020
    Published online: November 23, 2020

    Issue release date: September – December


    Number of Print Pages: 6

    Number of Figures: 3

    Number of Tables: 0



    eISSN: 1662-6567 (Online)


    For additional information: https://www.karger.com/CDE


    Open Access License / Drug Dosage / Disclaimer

    This article is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC). Usage and distribution for commercial purposes requires written permission. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

    Psoriasis – Kieran’s Medical Notes

    Definition

    • Chronic inflammatory skin disease
    • Characterised by erythematous, circumscribed scaly papules, and plaques on elbows, knees, extensor limbs, scalp, and, less commonly, nails, ears, and umbilical region
    • Typically lifelong, with a fluctuating course of exacerbations and remission.
    • Causes itching, irritation, burning, and stinging in half the cases

    Risk Factors

    • Genetic
      • Linked to the class I and II major histocompatibility complex on human chromosome 6.
      • Genetic foci found to be associated with psoriasis include PSOR1 and PSOR2.[9] [10]
    • Immune response
      • Associated with increased activity of T cells in underlying skin.
      • Biological agents used to treat severe psoriasis directly modify the function of T cells
      • HIV-positive patients develop more severe psoriasis. [10][11] [12]
    • Infection
      • Guttate psoriasis is observed to follow an upper respiratory infection, such as streptococcal pharyngitis, and is believed to be an infection-induced disease. 
      • Viral infection and immunisation have also been linked to the flare of psoriasis. [10] [13]
    • Stress
      • Stress aggravates the occurrence of psoriasis and makes psoriasis worse. 
      • Stress reduction techniques may be useful in controlling psoriasis. [15] [16]
    • Trauma
      • Trauma, such as surgical scars and injection sites, may result in the appearance of new psoriatic lesions at the sites of injury. [17]
    • Smoking
      • Smokers have a higher risk of psoriasis. 
      • This has been documented in several population studies. 
      • In one study the risk of having psoriasis was 1.7 to 1.9 times more likely in former or current smokers. 
      • The risk of having pustular psoriasis was even higher at 5.3 times. [16]

    Differential diagnosis 

    Epidemiology

    • The incidence of psoriasis is around 60 per 100,000 people[2] 
    • In general, about 1.5% to 3.5% of the white population has psoriasis. [3] 
    • The mean age of onset is 28 years, with equal distribution between men and women. [4] 
    • Asian populations appear to have a very low prevalence of psoriasis (0.3%). [5]
    • The incidence of psoriatic arthritis is 1.4 per 100,000 and a prevalence of 24 per 100,000
      • this is a conservative figure including only those with significant arthritis [6] 
      • Another estimate suggests an incidence of 6.6 per 100,000 and a prevalence of 100 per 100,000. [7] 
    • Around 7% to 11% of psoriatic patients have arthritis. [2] [7] [8]

    Aetiology 

    • The aetiology is unknown. Several factors have been suggested:
      • Immunology
        • Psoriasis appeared after cessation of systemic corticosteroids (rebound)
        • It is aggravated by the use of anti-malarials, lithium, and beta-blocker drugs
        • Lesions of psoriasis are associated with increased activity of T cells in underlying skin
        • Biological agents used to treat severe psoriasis directly modify the function of T cells
        • HIV patients have more severe and frequent psoriasis. [10] [11] [12]
      • Infection
        • Guttate psoriasis is observed to follow an upper respiratory infection, such as streptococcal pharyngitis
        • Viral infection and immunisation have also been linked to the flare of psoriasis. [10] [13]

    Clinical features

    • Skin lesions
      • Typically erythematous, circumscribed scaly papules and plaques
        • On elbows, knees, extensor surfaces of limbs, scalp, and, less commonly, nails, ears, and umbilical region
        • Typically blanching
      • In plaque psoriasis, there are raised inflamed plaque lesions with a superficial silvery-white scaly eruption
        • The scale may be scraped away to reveal inflamed and sometimes friable skin beneath
      • In guttate psoriasis, there are widespread, erythematous, fine, scaly papules (water drop appearance) on trunk, arms, and legs.
        • The lesions often erupt after an upper respiratory infection. [1]
      • In pustular psoriasis, (von Zumbusch) there are sterile pustules on the hands and feet
        • Diffuse or circular erythematous lesions with pustules and scaling on the trunk. [1]
      • In erythroderma (erythrodermic psoriasis), there is generalised erythema with fine scaling.
        • It is often associated with pain, irritation, and sometimes severe itching. [1]
    • Auspitz’s sign is the appearance of punctate bleeding spots when psoriasis scales are scraped off, named after Heinrich Auspitz
    • FHx
    • Light skin
      • Psoriasis is around twice as common in white populations as in black people
    • Skin discomfort
      • Skin is highly sensitive and itching can be severe. 
      • Bleeding may occur if the lesions are scratched. 
      • The skin can be painful, particularly if joints are involved
    • Smoking
      • Smokers are at higher risk of psoriasis.

    Pathophysiology

    • Psoriasis is a hyperproliferative disorder, involving a complex cascade of inflammatory mediators
    • Mitotic activity of basal and suprabasal cells is significantly increased, with cells migrating from the basal layer to the stratum corneum in just a few days
      • The silver scale on the surface of psoriasiform lesions is simply a layer of dead cells. [10] [14]
    • Cytokines, particularly proinflammatory cytokines, T cells, macrophages, and vascular endothelial growth factor are heavily involved in pathogenesis
      • Tumour necrosis factor-alpha (TNF-alpha), in particular, has been a target of biological therapy. 
      • TNF-alpha is high in serum, synovium and psoriatic plaques. 
    • Human monoclonal antibodies that block TNF-alpha receptors, or inhibit binding or activation of TNF-alpha receptors, have been shown to significantly control psoriasis

    Investigations

    • Skin biopsy
      • Intraepidermal spongiform pustules and Munro neutrophilic microabscess within the stratum corneum
      • In addition to these classical features, others include focal parakeratosis and epidermal acanthosis with dilated capillaries within dermal papillae.
    • Skin biopsy should be ordered only when diagnosis is in doubt, but biopsy does not always show classic pathological features.

    Management

    a) conservative
    b) medical

    • Emolients
      • Ointments (such as Aquaphore) or thick creams (such as Cerave, Nivea, or Eucerin) that are used to reduce scale and irritation. [22] 
      • They are available as over-the-counter preparations and should be applied at least once a day, preferably twice a day, but can be applied more often if required
      • Although both preparations are effective, most patients prefer creams to ointments, and compliance tends to be better with cream preparations.
    • Topical corticosteroids
      • Generally, the lowest potency of topical corticosteroid should be used. 
      • This often means a mid-potency agent for adults and most body areas. 
      • Low-potency treatments are appropriate for lesions on the face or intertriginous areas or for infants. 
      • High-potency topical corticosteroids are usually reserved for adults requiring short-term treatment of thick plaques that are resistant to lower-potency agents. [19]
    • Topical vitamin D analogues
      • Agents such as calcipotriol bind with vitamin D-selective receptors
      • Have been shown to inhibit the hyperproliferation and abnormal differentiation of keratinocytes characteristic of psoriatic lesions. [19]
      • These agents do not smell or stain clothes and may be more acceptable than tar or dithranol products.
      • Calcipotriol has a relatively slow onset of action and its maximal effect is after 6 to 8 weeks
      • For patients with scalp psoriasis, combination preparations consisting of a topical vitamin D analogue and corticosteroid (calcipotriene plus betamethasone dipropionate) are a welcome addition to the available topical therapies. [35]
    • Oral retinoids
      • These drugs (e.g., acitretin) are moderately effective in many cases and are often combined with other treatments.[C Evidence]
      • Treatment is not recommended for >6 months.
      • Liver function and blood lipid concentration should be monitored.
      • Women of childbearing ages are not suitable for this regimen as retinoid agents are teratogenic.
    • Methotrexate
      • Folic acid antagonist and works as an antiproliferative and anti-inflammatory agent.[C Evidence]
      • Although effective in most patients, it has the potential for hepatotoxicity. [24]
      • Methotrexate is contraindicated in the following groups: 
        • pregnant patients; people with renal impairment, hepatitis, or cirrhosis; 
        • people who abuse alcohol;
        • unreliable patients; 
        • patients with leukaemia or thrombocytopenia
      • Folic acid may be used in addition to methotrexate to minimise adverse effects (such as GI symptoms).
    • Dithranol cream
    • Ciclosporin
      • An effective treatment for psoriasis but has significant adverse effects.[C Evidence]
      • Long-term use (i.e., >12 months) is not recommended. 
      • A break (i.e., drug vacation) is recommended after 1 year, switching to other drugs such as methotrexate. 
        • Ciclosporin can then be restarted
    • Biological agents
      • Newer biological therapies are recommended as possible treatment
        • if the psoriasis is very severe and the disease has not improved with other treatments such as ciclosporin, methotrexate, or PUVA,
        • or the patients have had adverse effects with these in the past, or such therapy is contraindicated. [24] 
      • Alefacept
        • Has a dual mechanism of action that involves induction of T-lymphocyte apoptosis and interruption of T-lymphocyte activation.[A Evidence]
      • Etanercept
        • Inhibits tumour necrosis facto-alpha (TNF-alpha), an important cytokine involved in the pathogenesis of psoriasis
        • Has been shown to significantly reduce the severity of plaque psoriasis.[A Evidence]
        • Furthermore, etanercept has been demonstrated effective in treating psoriasis in adults, children, and adolescents.[25]
      • Infliximab
        • Also inhibits the activity of TNF-alpha and has been shown to have efficacy in the treatment of chronic plaque psoriasis
        • It has also been demonstrated to improve health-related quality of life in patients with psoriasis. [28] 
        • Meta-analysis has demonstrated that infliximab is more effective than adalimumab and etanercept. [29]
      • Adalimumab
        • Inhibits the activity of TNF-alpha and has been shown to have efficacy in in the treatment of chronic plaque psoriasis. [30] [31]
        • It is more effective than methotrexate and placebo. [32] 
        • Studies have demonstrated improvement in health-related quality of life. [33]
      • Ustekinumab
        • Humanized monoclonal antibody
        • Inhibits Interleukins 12 and 23.
        • It has been shown to be effective in clinical trial for psoriasis. [34]
    • Retinoid-PUVA (re-PUVA)
      • The re-PUVA regimen consists of methoxsalen and ultraviolet A (PUVA) with an oral retinoid
      • May prevent antigen presentation process by Langerhans cells in the skin
      • Acitretin is given the day before PUVA therapy, which enhances the efficacy.
      • Adverse features include inconvenient scheduling (treatment is delivered 3 to 5 times per week), phototoxicity (during and after treatment), and burning if the dose is not adequately controlled

    c) surgical
    Prognosis

    90,000 Stages of psoriasis. How does psoriasis start and what can be done at the initial stage?

    Psoriasis cannot be cured once and for all, therefore the main goal of therapy is to achieve a stable and maximum long-term remission.

    How to achieve stable remission?

    Treatment of psoriasis is most effective at the earliest stage. At the first signs of the disease, it is recommended to start therapy with safe non-hormonal agents and be sure to consult a doctor.

    How to relieve exacerbation of psoriasis?

    “Tsinocap” is an example of a modern combination drug capable of relieving symptoms at all stages of psoriasis in children and adults.

    More …

    Accurate implementation of all the doctor’s recommendations, the exercise of patience and perseverance will help to overcome psoriasis.

    More …

    If untreated, chronic psoriasis can worsen symptoms and increase the incidence of exacerbations.

    Remedy for psoriasis …

    Children’s psoriasis belongs to the group of chronic dermatoses, in most cases it occurs and worsens in the cold season.

    More …

    For the treatment of psoriasis, hormonal drugs are often prescribed, but with prolonged use they can cause unwanted side effects.

    Learn more …

    Psoriasis is one of the most common chronic dermatoses: the disease causes a rash in the form of pink plaques with silvery scales, often accompanied by itching. To one degree or another, about 3% of the entire population of our planet encounters this pathology, that is, we are talking about millions of people.Psoriasis can appear at any age, although most often the first signs of the disease are found either from 15 to 25 years old or after 50. However, if you have never had psoriasis, this does not mean that it will never appear. Everyone needs to know how psoriasis proceeds and how it should be treated, since in the early stages, psoriasis treatment is most effective.

    Mechanism of development of the disease

    The reasons for the development of psoriasis are a real medical secret.Scientists have been seriously investigating this disease for over 150 years, but we still don’t know as much about it as we would like.

    The fact that psoriasis is not an infectious disease and is not transmitted from person to person was known as early as the 19th century. But what causes psoriasis? Today there are several theories on this score. Perhaps the whole point is in the violation of metabolic processes, perhaps in a genetic error. However, we already know for sure what can provoke the development of the disease.

    Changes in the immune system are to blame for everything.They can be genetically determined or occur due to the influence of some external factors. The onset of the disease can be triggered by neuropsychic factors (such as stress), skin trauma, taking certain medications (especially antibiotics), alcoholism, and infectious diseases.

    Be that as it may, changes in the work of the body’s defense system lead to the fact that the life cycle of skin cells becomes very short, they begin to divide at a tremendous rate and do not have time to die off naturally.This is how a characteristic psoriatic plaque is formed – a painful speck that rises above the level of the skin and is covered with dry scales. This process is accompanied by inflammation: there is a release of inflammatory mediators that support both the inflammation itself and provoke the excessive formation of skin cells. The result is a vicious circle, and anyone trying to cure psoriasis knows how difficult it is to break this sequence. To alleviate the condition in psoriasis and achieve a stable remission, it is necessary to suppress the inflammatory processes, as well as to ensure intensive restoration of the skin and its barrier function.

    Stages of psoriasis according to the degree of exacerbation

    Three stages can be clearly traced during the course of the disease:

    Progressive stage

    This is the very beginning of the disease, and it can be very violent. Suddenly, small, no more than a pinhead, nodular rashes appear on the skin. A small gray scale of skin is visible at the apex of each nodule. The rash grows and forms plaques, and severe itching appears. Sometimes the plaques get wet, and due to a violation of the barrier function of the skin, an infection can also join the psoriasis at this stage.

    Stationary stage

    After a while, the process seems to freeze – papules (inflamed nodules) do not pass, but new ones no longer appear. The plaques are covered with dry skin scales or crust. During this period, the inflammation subsides.

    Regressive stage

    At the last stage of psoriasis, plaques gradually decrease and dissolve (usually starting from the central part, therefore, by the end of the regressive stage, rings and bizarre patterns appear on the skin), peeling and itching disappear.Very soon, only areas of slightly depigmented skin remain from psoriatic plaques.

    This is the completion of the psoriasis cycle, but not recovery. The whole process can be repeated at any time. If left untreated, psoriasis will recur over and over again almost monthly.

    It is important to know
    Alcohol in psoriasis is extremely harmful. According to some estimates, people who abuse alcohol are about 5 times more likely to get psoriasis than those who are indifferent to drinking.

    Stages of the disease according to the degree of damage

    Psoriasis is also classified according to the severity of the lesions, dividing it into mild, moderate and severe forms . The difference between them is in the area of ​​the affected skin. It is not difficult to calculate this figure even without the participation of a specialist: an open palm of an adult is approximately 1% of the entire surface of the skin.

    • Mild psoriasis refers to cases where less than 3% of the skin surface is affected.
    • Medium – 3 to 10% of the skin surface.
    • Severe degree – 10% of the entire skin and more.

    If psoriasis affects the joints, it is severe – no matter what area of ​​the skin is affected.

    In medical practice, there are several scales for assessing the severity of psoriasis. They assess various factors – from the area of ​​skin lesions to the level of disease activity. Most often, the so-called PASI index is used to determine the severity of psoriasis.

    How to recognize psoriasis at an early stage

    Treatment of psoriasis is most effective at the earliest stage.Therefore, it is so important to make a diagnosis on time. Only a dermatologist can tell you whether you have psoriasis or some other skin disease. However, you yourself can recognize this disease in yourself by several characteristic signs:

    • Most often, psoriasis first manifests itself on the bends of the arms and legs, at the hairline or where clothes are tightly in contact with the body or rub – under the belt of trousers, various elastic bands or shoulder straps.
    • At the onset of the disease, a very itchy rash appears, covered with gray or silvery skin scales, which are very easily removed.
    • If you remove the scale, you will see thin, shiny and slightly damp skin underneath.
    • If you scrape the plaque with something like a spatula, removing the scales, then the blood will appear on the spot in the form of tiny droplets. However, it is better not to use the latter method for self-determination of psoriasis – it is so very easy to infect an infection.

    For complete confidence, you need to consult a doctor, as patients themselves often confuse psoriasis with various types of lichen or allergic dermatitis and use unsuitable remedies for treatment.

    What to do if you find symptoms of the initial stage of psoriasis?

    Psoriasis cannot be cured once and for all, therefore the main goal of therapy is to achieve a stable and longest possible remission. You should know that without proper treatment, psoriasis quickly becomes chronic: exacerbations can occur up to 9 times a year, with a duration of up to 15 days. What if you suspect you have psoriasis? Often people, having discovered signs of this disease, make a big mistake, resorting to “heavy artillery” – hormonal ointments (the so-called topical glucocorticosteroids, or THCS), without consulting a doctor.Usually, patients explain such a step by the fact that they allegedly heard from friends that such funds help quickly. This is a big mistake!

    What is the danger of such self-medication? Hormonal ointments for psoriasis have a lot of side effects and contraindications. It is extremely undesirable to use them without the strict recommendation of a doctor on the duration of use, frequency, area of ​​application on the body, and also without taking into account the individual characteristics of your body. THCS belong to the category of highly effective agents, the use of which (from the point of view of the ratio of benefits and harms) is justified only in extremely severe cases.At the initial stage of the development of psoriasis, prolonged and uncontrolled use of TCGS can aggravate the course of the disease: cause addiction, withdrawal syndrome, skin atrophy, so that ultimately psoriasis returns, but in a more severe, often recurrent form.

    For effective treatment of psoriasis in the early stages, non-hormonal agents, for example, based on zinc pyrithione, should be used. Zinc pyrithione, or active zinc, is a very effective remedy for the treatment of psoriasis, which has a complex effect:

    • suppresses excessive proliferation of skin cells and inflammation, reducing scaling and the formation of psoriatic plaques;
    • relieves itching;
    • protects damaged skin from bacterial and fungal infections;
    • restores the lipid layer and the protective functions of the skin.

    Zinc pyrithione does not cause withdrawal symptoms, and the list of contraindications and side effects is minimal. The effectiveness of zinc pyrithione in the treatment of psoriasis, including in comparison with hormonal agents, has been confirmed by a number of Russian and foreign studies. One of the drugs based on zinc pyrithione, which have proven their effectiveness and safety, is the domestic drug “Tsinocap”, produced in the form of a cream and an aerosol. In addition to active zinc, “Zinocap” is also enriched with D-panthenol, which has an additional anti-inflammatory effect, prevents the loss of moisture in the skin, provides softening and helps to restore the intercellular structures of the skin.

    Treatment of psoriasis – causes, symptoms and treatment methods

    22 July 2021

    When the disease manifests itself on the skin, it becomes noticeable to others, it causes particular discomfort. After all, it is impossible to explain to everyone that the disease is completely non-infectious.

    When the disease manifests itself on the skin, it becomes noticeable to others, it gives special discomfort. After all, it is impossible to explain to everyone that the disease is completely non-infectious. Unfortunately, many uninformed people believe that psoriasis is caused by an infection and avoid any contact with a person who has manifestations of it.In this article, we will try to put an end to this attitude.

    What is psoriasis

    Psoriasis is scaly lichen caused, as shown by modern research, by a serious malfunction of the immune system. By its nature, it is dermatosis, that is, skin lesions, therefore, a dermatologist is involved in the treatment of psoriasis. The disease develops at any age, regardless of gender and type of human activity. According to the WHO, more than 4% of the world’s population has psoriasis.

    Symptoms

    In psoriasis, red, dry patches form on the skin, they are slightly raised above the skin, so they seem to create covered like plaques or scales. These papules indicate foci of chronic inflammation, where there is an increased formation of epidermal cells and new small capillaries.

    • The size of plaques is from 1 mm to 2-3 cm in diameter.
    • Due to the abundance of capillaries, they have a pink-red color.
    • Silver-white scales with a loose surface.
    • Mainly located on the arms and legs in the elbows and knees, scalp, trunk.
    • Often appear in the place of fresh wounds, scratches.
    • When the scales are removed, peeling increases, as if you were scratching a candle, and a shiny, damp surface forms in its place, droplets of blood are visible.
    • Thickening, punctate depressions, red spots under the nail plate appear on the nails,

    The skin areas affected by psoriasis look rather unpleasant in appearance, which gave rise to a prejudice against this disease.

    It is customary to distinguish between several forms of psoriasis, depending on its manifestation.

    • In the usual (vulgar) variety, the plaques are flat, pink-red in color, 50 mm in diameter or more, covered with silvery scales.
    • Exudative psoriasis is characterized by the appearance of moist, crust-like scales on the plaques, which are grayish-yellow in color. Sometimes they get wet.
    • The hollow form is characterized by the presence of small abscesses.
    • Psoriatic erythroderma affects the entire skin, the patient suffers from bouts of nausea, headache, severe weakness.
    • Arthropathic psoriasis also affects the small joints of the foot and hand.

    The last three forms of the disease are considered the most severe. They can arise both from the very onset of the disease and develop as a result of improper treatment or in the presence of adverse factors, for example, bad habits.

    How does the disease proceed?

    Psoriasis has an undulating character: the disease either recedes or worsens. Periods of exacerbation occur mainly in autumn and spring, as well as stressful situations, climate change, diet.

    There are four stages of psoriasis:

    • initial – small rashes no more than 1-3 mm in diameter, within 3-4 days. After the appearance of the rash, it becomes covered with a light gray bloom. It is generally accepted that if a person sought medical help within 21 days after the first rash, then the development of psoriasis can be stopped;
    • progressive – large areas of the skin are affected, on which pronounced silvery-white scales are formed. The rash itches a lot, there is a burning sensation.The stage lasts from 2 to 8 weeks. During this period, severe forms of psoriasis can develop, so it is extremely important to immediately consult a doctor;
    • stationary – this stage is also called the period of subsiding, it lasts indefinitely, here everything is individual. The rashes are covered with a dense gray crust, the skin is very rough, peeling;
    • regressive – at this stage the rashes become not so noticeable, one might even say that they dissolve. Itching disappears completely. No new lesions are formed.After this stage, remission occurs.

    With vulgar and exudatic forms of psoriasis, the prognosis is generally favorable. If the form is severe – pustular, psoriatic erythroderma or arthropathic psoriasis, then the question of obtaining disability is raised.

    Pregnancy can give the course of the disease an unpredictable direction, so expectant mothers are not recommended to use ointments containing hormones, tar, and also to undergo systemic therapy.

    Causes of psoriasis

    The causes of psoriasis are not fully understood, but it has been proven that the disease is non-infectious, that is, it is not transmitted from one person to another.With psoriasis, the process of division and maturation of skin cells is disrupted. The top layers of the skin die off faster than normal.

    • If psoriasis occurs at a young age, affecting the skin, most likely, this is due to a hereditary predisposition to the disease.
    • The second type of psoriasis affects joints and nails, occurs most often in people of mature and older age, which is not associated with a genetic factor.
    • Also, a number of studies have shown that the cause of the disease is psychosomatics, that is, it is caused by severe stress.

    In addition, it has been proven that the development of psoriasis can be triggered by an unsuitable climate, excessive consumption of alcohol, chocolate, vinegar-based pickles, pepper.

    Studies confirm the fact that psoriasis is a systemic disease that can affect internal organs and the skeleton.

    Methods of treatment

    Unfortunately, psoriasis cannot be completely cured at the moment. Modern methods of therapy make it possible to alleviate the course of the disease, achieve a certain cosmetic effect and reduce the likelihood of complications.The dermatologist builds treatment tactics depending on the stage of psoriasis, the size of the skin lesion, the age and sex of the patient, the individual characteristics of the organism, and concomitant diseases.

    Drug treatment

    In milder forms of psoriasis, the doctor selects drugs for local action: hormonal ointments, salicylic ointment, tar preparations, naftalan, emollient creams, lotions, shampoos. For more severe lesions, systemic treatment is prescribed, in particular, tablets: acitretin, methotrexate, cyclospori-A and others.These are very serious drugs, the dosage is selected individually, taking into account the results of blood tests.

    With a progressive stage of psoriasis therapy, strict medical supervision is required. To stop the inflammatory process, intravenous infusions of hemodesis, solutions of sodium thiosulfate, calcium gluconate, as well as the intake of intraintestinal sorbents are prescribed.

    To achieve a stable positive result, drug treatment of psoriasis in the stage of subsiding and remission is supplemented by physiotherapy procedures, a special diet.

    Physiotherapy procedures

    In modern dermatology, phototherapy with a UV lamp is widely used for the effective treatment of psoriasis. The essence of the method is that ultraviolet rays:

    • enhance local immunity;
    • trigger the production of vitamin D;
    • normalize metabolic processes in the cells of the epidermis.

    In addition, the UV lamp does not cause burns and scars on the skin and does not require the mandatory use of photosensitizers.

    Important! Phototherapy has a number of contraindications. In particular, the procedures cannot be carried out in the presence of:

    • tumor processes;
    • acute inflammations;
    • tuberculosis in open form.

    Phototherapy with a UV lamp is performed during the period of psoriasis subsiding and during remission. The procedures can be performed at home as well.

    Traditional methods of treatment

    At the initial stage, to relieve discomfort, traditional medicine recommends applying juniper or lavender oil to the rash, mixed with baby cream.Also fights inflammation well with 3% hydrogen peroxide.

    With a progressive stage, celandine tincture helps relieve itching and remove the burning sensation: 3 tablespoons of ground dry herb are mixed with salt water, infused for 2-3 hours, stored in the refrigerator. The resulting agent is pointwise lubricated with rashes. Natural birch tar has also proven itself well (only suitable for spot application).

    During the stationary stage, you can use all of the above means by adding to them beekeeping products – propolis, wax, honey.Papules are smeared with propolis mixed with boiled vegetable oil and melted wax, and honey is taken orally in a tablespoon twice a day.

    The key to successful psoriasis treatment is regular consultations of a competent dermatologist. Remember that all drugs, treatment methods, recipes of traditional medicine must be coordinated with your doctor. Self-medication can lead to a sharp deterioration in the condition and the transition of the disease to a more severe form.

    90,000 What you need to know about psoriasis

    Psoriasis (psoriasis vulgaris , squamous lichen) – is one of the most common chronic skin diseases.It is characterized by a monomorphic rash consisting of flat papules of various sizes, which tend to merge into large pink-red plaques, quickly becoming covered with loose silvery-white scales. In addition to the skin, psoriasis affects the nails and joints. In developed countries, 1.5-2% of the population suffers from psoriasis, equally often men and women.

    Figure 1. The most typical localization of psoriasis.

    Classification:

    • Non-pustular forms:
      • Common psoriasis:
        • with early onset (type I) – in women, the disease begins on average at 16 years old, in men at 22 years old;
        • with late onset (type II) – begins in old age, with an average of 56 years.
      • Psoriatic erythroderma.
    • Pustular forms:
      • Palmar-plantar pustular psoriasis (Barbera’s pustular psoriasis).
      • Pustular psoriasis, flowing like a centrifugal annular erythema.
      • Generalized pustular psoriasis (Tsumbusha pustular psoriasis).

    Heredity: Disease with polygenic inheritance.If one of the parents is sick, the child’s risk of psoriasis is 8%; if both father and mother suffer from psoriasis – 41%.

    Provoking factors:

    • Mechanical trauma to the skin (including rubbing and scratching) is the leading cause of the appearance of new rashes (Kebner’s phenomenon).
    • Infection: Acute streptococcal infection contributes to guttate psoriasis.
    • Stress: 40% of adult patients associate
      exacerbation of psoriasis with emotional overload, this happens even more often in children.
    • Medicines for systemic use – corticosteroids, lithium salts, antimalarial agents, interferons.

    Three stages are distinguished during psoriasis:

    • Progressive – characterized by the appearance of fresh miliary rashes, the continued growth of already existing papules, a bright color of the rash. Peeling of papules is especially pronounced in the central part, and along the periphery there is a hyperemic border – a corolla of growth (Pilnov’s rim), Often new elements appear at the sites of minor injuries, scratches – a positive isomorphic reaction (Kebner’s phenomenon).Usually in these cases, the papules are located linearly, indicating by their localization the site of irritation. The isomorphic reaction is explained by the presence of pronounced hyperergia, readiness for an inflammatory reaction. The slightest irritation of the skin is accompanied by the formation of a new rash, itching worries.
    • Stationary – the appearance of new and the growth of old papules stops, their color acquires a pronounced cyanotic hue, peeling decreases.
    • Regressive – is characterized by the appearance on the periphery of many papules of Voronov’s “pseudoatrophic rim” (after the papule growth stops, a whitish zone a few millimeters wide usually appears around it with a gentle folding of the stratum corneum), gradual disappearance of clinical symptoms, resorption of papules starting from the center of the elements along towards their periphery: peeling disappears, the color fades, and then all papules dissolve, often leaving behind temporary hypopigmentation (psoriatic pseudo-leucoderm) .

    The nature of skin lesions. Elements of the rash. Papules and plaques with clear boundaries, covered with silvery-white scales (see Fig. 2 and 3). The positive symptom of Auspitsa (the phenomenon of blood dew): when scraping the papules, point drops of blood are obtained that do not merge with each other. Pustules, erythroderma.

    Figure 2 – Common psoriasis: elbow lesion.A bright pink plaque with clear boundaries covered with thick but easily detachable scales. The scales are silvery white, resembling mica. The plaque arose when several small papules merged.

    Figure 3 – Common psoriasis: plaque duty.
    Dense asbestos-like silvery-white scales almost completely cover the plaque

    Color Pink, “salmon”.

    Form. Round, oval, polycyclic, annular, linear.

    Location. Individual elements, arranged randomly or in the form of arcuate, serpentine figures. Coverage of one or more adjacent dermatomes, as in shingles. The fusion of elements among themselves up to erythroderma.

    Localization. Bilateral lesion (see Fig. 4), which is occasionally symmetrical. Favorite localization – elbows, knees, scalp, skin folds. On open areas of the body, rashes are far from always. Facial involvement is rare and indicates a persistent course of psoriasis.

    Figure 4 – Common psoriasis: trunk involvement.

    In guttate psoriasis – scattered small papules that do not have a favorite localization (see Fig. 5).

    Figure 5 – Guttate psoriasis. Red, scaly, in places merging papules and plaques dotted the entire body. The disease arose soon after a sore throat.

    Features. With psoriasis, do not rub and scratch the plaques, as this leads to the appearance of new rashes.

    Psoriasis of the scalp – plaques covered with thick, difficult to separate scales (Fig.6). Lichenization (the result of constant scratching and rubbing of the skin). Moisture and cracks, especially behind the ears. Location. Scattered, scattered plaques or diffuse lesions of the entire scalp. With psoriasis of the scalp, there is almost never alopecia.

    Figure 6 – Psoriasis of the scalp. Thick scales cover the entire scalp like a helmet. Red plaques spread to the skin of the forehead.

    Psoriasis of nails.Damage to nails of varying severity occurs in 25% of patients with psoriasis. Psoriasis of the nails often goes away on its own or as the rash on the skin resolves. Nails are affected in 25% of patients with psoriasis. Both fingernails and toenails are affected. Characterized by pinpoint depressions (thimble symptom), subungual hyperkeratosis, onycholysis (Fig. 7 and 8). A pathognomonic sign is yellowish-brown spots under the nail (a symptom of an oil spot).

    Figure 7 – Psoriasis of nails.The symptom of a thimble – a lot of punctate depressions on the
    nail plate – is very characteristic, but not pathognomonic for psoriasis. The differential diagnosis is carried out with the defeat of the nails with alopecia areata. This patient also showed marginal onycholysis and mild subungual hyperkeratosis

    Figure 8 – Psoriasis of nails. The symptom of an oil stain – yellowish-brown spots on the nail bed – is a pathognomonic sign of psoriasis. Marginal onycholysis is also visible

    Palms and soles (fig.9) may be the only affected area. Rashes are difficult to treat.

    Figure 9 – Common psoriasis: lesion of the soles. Clearly demarcated red plaques
    covered with thick yellowish scales. Mainly the support areas of the foot are affected. Similar eruptions were found on palms

    Treatment of psoriasis should be comprehensive.It includes general and local therapy, physical therapy, adherence and diet. When prescribing treatment, it is necessary to take into account the stage of the process, the clinical form and the type of psoriasis.

    DO NOT TREAT YOURSELF IF A ROSE ON THE SKIN, CONSULT A DOCTOR. THE BEFORE THE TREATMENT IS STARTED, THE BETTER THE RESULT AND THE FASTER EFFECT.

    Doctor – surgeon K.V. Melnikova

    Psoriasis – causes, symptoms and treatment: at what age does it appear and can it be cured

    Table of Contents

    Psoriasis is a common chronic skin disorder characterized by red, raised patches with silvery white scales on the head, lower back, nails, vulva, and elsewhere.The disease can develop at almost any age (including young patients). Today, about 3% of the world’s inhabitants suffer from pathology. Often, the disease not only causes physical discomfort, but also becomes the cause of depression, low self-esteem, in some cases even leads to complete isolation of a person who begins to feel ashamed of his body.

    Causes of psoriasis

    At the moment, the exact causes of psoriasis are unknown, but the pathology is being treated, since it is known that the pathology can be provoked by:

    • Metabolic disorders
    • Immunological failures
    • Neurological disorders

    There is a hypothesis according to which a genetic factor plays an important role in the development of pathology.Psoriasis in children, for example, is often hereditary. If pathology occurs in an adult, experts isolate its viral and bacterial nature.

    Also, the development of the disease can be provoked:

    • Skin features (dryness and thinness)
    • Bad habits
    • Frequent stress
    • The effect of fungi
    • Taking antidepressants and a number of other medical devices
    • Excessive hygiene (frequent hand washing, for example)
    • Exposure to salts, acids and other aggressive external factors

    Treatment of psoriasis should be carried out depending on the cause.It is very important to see a doctor at the first signs of pathology. The specialist will carry out an accurate comprehensive diagnosis and prescribe an adequate individual therapy.

    Is psoriasis contagious?

    Some people think psoriasis is contagious and shy away from people with the condition. What provokes the patient’s desire to hide from those around him at home, becomes the cause of complexes and serious psychological problems. In fact, it has already been proven (through numerous studies) that psoriasis is not contagious.If the whole family is sick, this only speaks of the importance of the genetic factor in the development of pathology.

    Stages of development

    At the moment, specialists distinguish 3 stages in the development of pathology:

    • Progressive . It is characterized by the constant formation of new rashes, provoking severe itching 90 104
    • Stationary . This stage is characterized by the termination of the emergence of new formations. In the stationary stage, an existing rash begins to heal 90 104
    • Regressive .This stage is characterized by the appearance of rims around the formations. Only increased skin pigmentation reminds of the disease. Skin affected by rashes has a darker color

    Also, there are several degrees of severity of pathology:

    • Light . With this psoriasis, no more than 3% of the skin surface is affected 90 104
    • Medium . Characterized by 3-10% damage
    • Heavy . This pathology is characterized by the involvement of more than 10% of the body surface 90 104

    First signs

    Psoriasis, symptoms, causes, the treatment of which is determined by the doctor, is characterized by such signs as:

    • Convex red spots with silvery or white scales
    • Deformation of nails and their delamination
    • Exfoliation of dead skin cells
    • Cracks in the skin causing discomfort
    • Blistering feet and palms

    If any symptoms of psoriasis appear, treatment should be started immediately!

    Symptoms of psoriasis

    It should be understood that plaques on the body are only external symptoms of psoriasis.In fact, numerous body systems suffer from pathology, as well as tendons, joints and even the spine. The thyroid gland, kidneys and liver are often affected.

    For this reason, patients complain about:

    • Chronic fatigue
    • Constant feeling of weakness
    • Depressive state

    In some cases, psoriasis is complicated by a fungal infection, complete loss of nail plates, limited joint mobility.A form of psoriasis such as psoriatic erythroderma, for example, can lead to skin detachment. This, in turn, disrupts the body’s ability to regulate temperature, the barrier function of the dermis, and can be fatal!

    Course of the disease

    Psoriasis is characterized by an undulating course. Most patients have periods of remission, improvement and exacerbation. The latter, as a rule, are provoked by aggressive external influences. Exacerbations usually begin after drinking alcohol, stress and infection.Psoriasis is dangerous because for a long time it can manifest itself only by the formation of plaques. Often they are located in one place and do not bother the patient in any way. Because of this, he does not go to the doctor. Suddenly, plaque can begin to grow and cover the entire body. In the absence of treatment, the pathology progresses, involves internal organs and systems. Symptoms of the disease are aggravated, and the patient’s condition worsens.

    In some patients, there is a continuous course of pathology.There are no periods of remission. With this course, the condition worsens gradually, the disease begins with a rash on certain parts of the body. Then the individual formations merge with each other. The patient notices a deterioration in the condition of the nails, general weakness and other symptoms.

    Psoriasis Treatment

    Treatment of psoriasis symptoms in adults depends largely on the stage of the disease.

    Almost always, therapy is carried out in a comprehensive manner and includes:

    • The use of external agents.Patients are prescribed emollients and other medications in the form of creams, lotions, and ointments. They contain zinc, tar, naphthalan and other substances that improve the overall condition of the skin
    • Medicines for oral administration. Hormones, antineoplastic and other agents are prescribed
    • Physiotherapy procedures. Techniques such as plasmapheresis, cryotherapy, photochemotherapy are beneficial
    • Compliance with general regime
    • Prescribing a special diet

    When developing a psoriasis treatment program, a number of factors are taken into account, including:

    • Gender and age of the patient
    • Presence of concomitant diseases
    • General health
    • Impact of occupational and other external factors

    In some cases, it is enough for the patient to change his job or his lifestyle in general, in others – to undergo several long courses of treatment.

    Treatment of psoriasis in adults and children is also carried out using modern laser technologies. Therapy allows you to weaken the symptoms of pathology, provide a long and stable remission, save the patient from ugly rashes and complexes associated with them. A special excimer laser acts only on the affected areas of the skin, without affecting the healthy ones around. Thanks to this, there is no need for a long recovery after the procedure and there are no side effects after the session.Laser therapy requires no preparation, is safe and painless. Psoriasis, which is regularly treated using this method, becomes a diagnosis with which the patient lives without any restrictions.

    Diet for psoriasis

    Even not every experienced specialist can accurately answer the question of which diet will be effective for psoriasis. This is due to the individual characteristics of the patient’s body. Some psoriasis sufferers respond positively to a certain category of food, others to the opposite.For this reason, the diet is always individually selected and constantly adjusted. In any case, it is very important that the patient receives all the nutrients in full.

    With psoriasis, experts recommend excluding:

    • Nuts and citrus zest
    • Spices and smoked products
    • Spicy and salty foods
    • Blue cheese
    • Alcohol
    • Fatty meat and sausages
    • Sweets

    It is very important to saturate the diet with fatty acids, which are abundant in fish.Fatty acids are helpful in relieving itching, flaking, and irritation of the skin. In addition, they increase the body’s defenses.

    Benefits of treatment at MEDSI

    • The use of modern methods of treating psoriasis in adults and children. MEDSI conducts phototherapy sessions using laser radiation
    • Use of modern equipment. In our center on Krasnaya Presnya, the Excilite µ system has been installed, which allows removing ugly plaques from the patient’s body without pain or side effects
    • Possibilities for prolonging periods of remission and improving the general condition of patients suffering from psoriasis for many years
    • Involvement of not only dermatologists, but also trichologists, cosmetologists and physiotherapists in the treatment of psoriasis
    • Employees of high-level specialists who have been successfully treating psoriasis, eliminating the causes and symptoms of the disease for many years
    • Comfortable atmosphere in all clinics and attentive attitude to patients of any age

    To use professional help in the treatment of psoriasis, it is enough to make an appointment with a specialist by phone +7 (495) 7-800-500.

    90,000 Psoriasis – signs, causes, symptoms, treatment and prevention

    Causes

    To date, the exact causes of psoriasis are unknown. There are only theories of the possible development of the disease.

    The hereditary theory is one of the most widespread. Scientists have identified a pattern in the frequency and development of psoriasis in people whose parents and closest relatives suffer from the same disease. There are also viral, neuroendocrine, infectious-allergic theories.The development of psoriasis in people with metabolic disorders is observed, which may also be one of the theories of the origin of the disease.

    Symptoms

    Psoriasis rashes will occur on almost all areas of the skin, but most often develop on the extensor surfaces of the upper or lower extremities (in the elbow and knee joints), on the scalp, as well as in the lumbosacral region. There is also an atypical location of the rash on the body, for example, in the area of ​​large folds.

    The disease begins acutely with the appearance of small flat elevations of the skin (papules) of pink or red color, which are covered with white-silvery peeling scales of the epidermis. These plaques (papules) gradually increase in size, which can merge with each other to form extensive infiltrative foci with uneven outlines.

    Rashes on the oral mucosa are practically not observed. But occasionally, you can still find a round or irregular rash that rises above the level and has a whitish color.There is no soreness or itching sensation.

    In the psoriatic process, the nail plates are often affected (their surface begins to resemble a thimble), thickening and destruction of the nails occurs. Transverse grooves may also appear.

    Psoriasis rashes can be localized, common and universal.

    Depending on the prevalence of the clinical form, psoriasis may be accompanied by a sharp rise in body temperature and a severe general condition (psoriatic erythroderma).

    If exudation on the surface of plaques predominates, then gray-yellow scales are formed, this process is observed in exudative psoriasis. With increased exudation and the development of the process, vegetations appear in the skin folds, which are very itchy and accompanied by burning.

    Pustular psoriasis looks like intraepidermal abscesses, which are located on a reddened base with the presence of typical psoriatic plaques.

    The most severe form of psoriasis is arthropathic, which is accompanied by damage to the joints (arthritis).With this form, there will be sharp soreness, swelling of the joints and limitation of their mobility. Subsequently, the joints begin to deform, which entails disability for the patient with psoriasis.

    In children, the most common form of psoriasis is exudative.

    There are several stages of the psoriatic process:

    The progressive stage is characterized by the appearance of new point elements of bright red color, which increase along the periphery and appear at the site of skin irritation by various factors.

    In the stationary stage, new eruptions no longer appear, but large pink plaques the size of a coin or more remain.

    The regressive stage is accompanied by flattening of plaques and their resorption. If the regression of the rash begins from the center of the plaque, then they acquire a ring-shaped shape. And with regression from the edge of the plaque, a strip of depigmented skin is formed along the periphery.

    After the disappearance of plaques and any kind of manifestation of psoriasis, hyperpigmentation or depigmentation remains on the skin.

    90,000 Skin diseases. Psoriasis. | SEVKAVKURORTSERVIS

    Skin diseases. Psoriasis.

    Human skin is considered an independent organ that performs vital functions. Healthy skin is a prerequisite for well-being. But she is also susceptible to pathological processes. The undoubted advantage is that at a very early stage you can see the disease and start treatment.But there are also negative aspects: skin diseases cause aesthetic and psychological discomfort to a person. Therefore, first of all, it is necessary to diagnose the disease, and secondly, to start treatment.

    One of the skin diseases is psoriasis, a chronic non-infectious disease that affects the skin and nails. People, regardless of age, are prone to psoriasis: both children and adults. However, the cause of the disease has not yet been identified. Psoriasis manifests itself as red scaly spots and has several varieties:

    • plaque psoriasis
    • pustular psoriasis
    • punctate psoriasis
    • psoriasis of flexion surfaces

    Treatment of psoriasis can be carried out not only in a polyclinic, but also in a sanatorium.In the health resorts of the Caucasian Mineral Waters, namely in Pyatigorsk, considerable experience has been accumulated in the treatment of psoriasis. The spa approach is based on an integrated approach: diet therapy, mud therapy, physiotherapy procedures and balneotherapy.

    In the sanatoriums of Pyatigorsk, mud from Lake Tambukan is used for the treatment of psoriasis. Silt sulphide mud, along with the Dead Sea mud, is rich in chlorine, magnesium and calcium, has a regenerating effect and has an antiseptic effect.

    Ultraviolet irradiation (UFO), electrosleep, phyto and light therapy, intravenous laser blood purification (ILBI), magnetic field treatment (Multimag apparatus), etc. can be prescribed from the physiotherapy block.

    Mineral showers and baths with the use of hydrogen sulphide water gushing from the bowels of the Goryachaya mountain, which have an immunostimulating effect, are effective procedures in the treatment of psoriasis in the health resorts of Pyatigorsk.

    Experts recommend a spa treatment lasting at least 14 days.Even for such a short period of time, a vacationer is able not only to see, but also to feel a positive result from the procedures passed, and for the next 9-11 months to forget about this misfortune.

    Medical center “NARUS”, Khimki


    Psoriasis (squamous lichen) is a chronic non-contagious disease that affects the skin, nails and joints. It is characterized by the appearance of a monomorphic rash on the skin: bright pink nodules covered with silvery scales.The elements of the rash can merge in various configurations, resembling a geographical map. It is accompanied by moderate itching of the skin. Psoriasis worsens the appearance of the skin and brings psychological discomfort to the patient. With joint damage, psoriatic arthritis develops. Generalized pustular psoriasis of pregnant women is dangerous, leading to fetal damage and miscarriage.

    Causes and pathogenesis of psoriasis

    The etiology and pathogenesis of psoriasis are not fully understood, but research results suggest that a hereditary, infectious or neurogenic nature is most likely.

    The hereditary nature of psoriasis is confirmed by the facts that the incidence is higher in those families in which psoriasis has already been diagnosed, in addition, in monozygotic twins, the incidence rate is also higher than in other groups. The infectious etiology of psoriasis is reduced to the presence of altered complexes and inclusions, as in a viral infection, but, however, the virus has not yet been identified.

    And, today, psoriasis is considered a multifactorial disease with a share of genetic and infectious components.The risk group for the incidence of psoriasis includes people with constant skin trauma, with the presence of chronic streptococcal skin infections, with disorders of the autonomic and central nervous system, with endocrine disorders, in addition, alcohol abuse increases the likelihood of psoriasis.

    Clinical manifestations of psoriasis

    The primary element of psoriasis is a single papule of pink or red color, which is covered with a large number of loose silvery-white scales.An important diagnostic feature is the triad of psoriasis: the phenomenon of a stearin spot, a terminal film, and precise bleeding when the scales are scraped off.

    At the stage of development of psoriasis, there are few rashes, gradually over the course of months and even years, their number increases. Psoriasis very rarely debuts with intense and generalized rashes, such an onset can be observed after acute infectious diseases, severe neuropsychic overload and after massive drug therapy.If psoriasis has such an onset, then the rash is edematous, has a bright red color and quickly spreads throughout the body, psoriatic plaques are hyperemic, edematous and often itchy. Papules are localized on the flexion surfaces, especially in the knee and elbow joints, on the trunk and scalp.

    The next stage of psoriasis is characterized by the appearance of new, already small elements at the sites of scratches, injuries and abrasions, this clinical feature is called the Kebner phenomenon.As a result of peripheral growth, the newly formed elements merge with the existing ones and form symmetrical plaques or are arranged in the form of lines.

    In the third stage of psoriasis, the intensity of the peripheral growth of plaques decreases, and their boundaries become clearer, the color of the affected skin acquires a bluish tint, intense peeling is observed on the entire surface of the elements. After the final cessation of the growth of psoriasis plaques, a pseudoatrophic rim is formed along their periphery – the Voronov rim.In the absence of treatment for psoriasis, plaques thicken, sometimes papillomatous and warty growths can be observed.

    In the stage of regression, the symptoms of psoriasis begin to fade away, while normalization of the skin goes from the center of the affected surface to the periphery, peeling first disappears, the color of the skin normalizes, and lastly tissue infiltration disappears. With deep lesions of psoriasis and with lesions of thin and loose skin, temporary hypopigmentation can sometimes be observed after cleansing the skin of rashes.

    Exudative psoriasis differs from usual by the presence of crusted scales on plaques, which are formed due to soaking with exudate, there may be oozing in the folds of the body. Patients with diabetes mellitus, people with hypothyroidism (hypothyroidism) and overweight are at risk for the incidence of exudative psoriasis. Patients with this form of psoriasis report itching and burning in the affected areas.

    Psoriasis, proceeding according to the seborrheic type, is localized in areas prone to seborrhea.A large amount of dandruff does not allow the diagnosis of psoriasis in time, as it masks the psoriatic rash. Over time, areas of the skin affected by psoriasis grow and transfer to the skin of the forehead in the form of a “psoriatic crown”.

    Psoriasis of the palms and soles is more common in people who are engaged in heavy physical labor. With this type of psoriasis, the bulk of the rashes are localized on the palms, only isolated areas of the rash are found on the body.

    Pustular forms of psoriasis begin with one small vesicle, which quickly degenerates into a pustule, and upon opening forms a crust.In the future, the process spreads to healthy skin in the form of common psoriatic plaques. In severe forms of pustular psoriasis, small intraepidermal pustules may appear on the infiltrated skin, which merge to form purulent lakes. Such pustules are not prone to opening and dry up into brown, dense crusts. With pustular forms of psoriasis, the lesions are symmetrical, often the nail plates are involved in the process.

    The arthropathic form of psoriasis is one of the most severe, there is pain without deformation of the joint, but in some cases the joint is deformed, which leads to ankylosis.In psoriatic arthritis, the symptoms of psoriasis on the part of the skin can occur much later than arthralgic phenomena. First of all, the small interphalangeal joints are affected, and only later the large joints and the spine are involved in the process. Due to the gradually developing osteoporosis and destruction of the joints, the artopathic form of psoriasis often ends with the disability of patients.

    In addition to skin rashes in psoriasis, vegetative-dystonic and neuroendocrine disorders are observed; during exacerbations, patients note an increase in temperature.Some patients with psoriasis may have asthenic syndrome and muscle atrophy, malfunctioning of internal organs and symptoms of immunodeficiency. If psoriasis progresses, then visceral disorders become more pronounced.

    Psoriasis has a seasonal course, most of the relapses are observed in the cold season and very rarely psoriasis worsens in summer. Although recently, mixed forms of psoriasis, recurrent at any time of the year, are being diagnosed more and more often.

    Diagnosis of psoriasis

    The diagnosis is made by dermatologists on the basis of external skin manifestations and patient complaints.Psoriasis is characterized by the psoriatic triad, which includes the phenomenon of stearin spot, the phenomenon of psoriatic film and the phenomenon of blood dew. When scraping even smooth papules, peeling increases, and the surface takes on a similarity to a stearin spot. With further scraping after the complete removal of the scales, the thinnest delicate translucent film is detached, which covers the entire element. If the exposure is continued, the terminal film is rejected and a moist surface is exposed, on which spot bleeding occurs (a drop of blood resembling a drop of dew).

    In atypical forms of psoriasis, it is necessary to carry out differential diagnosis with seborrheic eczema, papular syphilis and lichen rosacea.

    Histological studies reveal hyperkeratosis and almost complete absence of the granular layer of the dermis, the prickly layer of the dermis is edematous with foci of accumulations of neutrophilic granulocytes, as the volume of such a focus increases, it migrates under the stratum corneum of the dermis and forms microabscesses.

    Psoriasis treatment

    Treatment of psoriasis should be comprehensive, first, local drugs are used, and course drug treatment is switched on if local treatment is ineffective.Compliance with work and rest, a hypoallergenic diet, avoidance of physical and emotional stress are of great importance in the treatment of psoriasis.

    Physiotherapeutic procedures such as paraffin baths, UV irradiation are indicated for various forms of psoriasis. Effectively laser treatment of psoriasis and phototherapy.

    During the rehabilitation period, spa treatment with sulfide and radon sources helps to achieve stable and long-term remission.

    Prevention of psoriasis

    There is no specific prophylaxis for psoriasis, but after the onset of the disease, it is necessary to take sedatives, take vitamin therapy courses and correct diseases that provoke relapses of psoriasis.

    Doctors of the medical clinic “Narus”, using timely therapy and the latest methods of physiotherapy, will help to achieve long-term remission of psoriasis.

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