About all

Sore on bottom of mouth under tongue. Ranula: Causes, Symptoms, and Innovative Treatment Options

What is a ranula and how does it form. What are the common symptoms of a ranula. How are ranulas diagnosed and treated. What are the potential complications of ranula treatment. When should you seek medical attention for a suspected ranula.

Содержание

Understanding Ranulas: Fluid-Filled Cysts in the Mouth

A ranula is a fluid-filled cyst that develops in the mouth, typically under the tongue. These cysts form when saliva leaks from a damaged salivary gland, creating a bubble-like structure in the surrounding tissue. Ranulas can be classified into two main types:

  • Simple ranula: Confined to the area underneath the tongue
  • Plunging ranula: Extends down into the neck region

Understanding the nature of ranulas is crucial for proper diagnosis and treatment. These cysts, while generally benign, can cause discomfort and may require medical intervention.

The Anatomy Behind Ranula Formation

To comprehend how ranulas develop, it’s essential to understand the role of salivary glands in the mouth. There are three primary pairs of salivary glands:

  1. Parotid glands
  2. Submandibular glands
  3. Sublingual glands

Ranulas most commonly originate from the sublingual glands. When one of these glands is injured or diseased, it can no longer properly channel saliva into the mouth. Instead, the saliva leaks into the surrounding tissue, forming a fluid-filled cyst known as a ranula.

Why do salivary glands become damaged?

Salivary gland damage can occur due to various factors, including:

  • Physical trauma to the mouth
  • Surgical complications
  • Infections
  • Congenital abnormalities

Identifying the underlying cause of salivary gland damage is crucial for preventing recurrence and determining the most appropriate treatment approach.

Recognizing the Signs and Symptoms of Ranulas

Ranulas often present with distinct characteristics that make them relatively easy to identify. The most common symptoms include:

  • A painless, soft swelling under the tongue or chin
  • Typically 2-3 inches in diameter
  • Gradual growth over time
  • Occasional mild discomfort
  • Potential for spontaneous emptying and refilling

In most cases, ranulas are discovered by the patient, family members, or healthcare providers during routine examinations. The swelling is usually easily visible and palpable, making it a noticeable abnormality in the mouth or neck area.

Can ranulas cause pain?

While ranulas are generally painless, some patients may experience mild discomfort. The level of pain can vary depending on the size and location of the cyst, as well as any secondary complications that may arise.

Diagnostic Approaches for Ranulas

Accurate diagnosis of ranulas is crucial for determining the most appropriate treatment plan. While experienced physicians can often diagnose ranulas based on physical examination alone, additional diagnostic tools may be employed to confirm the diagnosis and assess the extent of the condition.

Imaging techniques used in ranula diagnosis:

  • Ultrasound: Provides real-time visualization of the cyst and surrounding structures
  • Computed Tomography (CT) Scan: Offers detailed cross-sectional images of the affected area
  • Magnetic Resonance Imaging (MRI): Provides high-resolution images of soft tissues, helping to differentiate ranulas from other types of cysts or tumors

These imaging studies not only help confirm the diagnosis but also aid in determining the full extent of the ranula, which is particularly important for plunging ranulas that extend into the neck region.

Are blood tests necessary for diagnosing ranulas?

In most cases, laboratory tests are not required to diagnose ranulas. The combination of physical examination and imaging studies is usually sufficient to make an accurate diagnosis and rule out other potential causes of swelling in the oral cavity or neck.

Innovative Treatment Options for Ranulas

While ranulas can occasionally resolve on their own, most cases require medical intervention. Treatment approaches have evolved over time, with new minimally invasive techniques offering alternatives to traditional surgical methods.

Traditional surgical approaches:

  • Open surgical drainage of the ranula
  • Removal of the diseased salivary gland through an incision in the mouth or under the chin

Innovative percutaneous treatment:

Developed at Nationwide Children’s Hospital around 2004, this minimally invasive procedure offers several advantages:

  • No open surgery or incisions required
  • Performed under anesthesia in approximately 30 minutes
  • Uses ultrasound guidance for precise needle placement
  • Involves draining the cyst and injecting absolute alcohol into the diseased salivary gland
  • Aims to stop saliva leakage and resolve the ranula

This percutaneous approach has been used successfully since its development, providing a less invasive alternative for treating ranulas.

How effective is the percutaneous treatment for ranulas?

The percutaneous treatment has shown high success rates in resolving ranulas. However, in some cases, a second treatment may be necessary to achieve complete resolution. Rarely, if the diseased gland resists the medication injections, referral to an experienced surgeon for traditional surgical removal may be required.

Potential Complications and Side Effects of Ranula Treatment

While the percutaneous treatment for ranulas is generally considered safe and effective, it’s important to be aware of potential complications and side effects associated with any medical procedure.

Common side effects of percutaneous ranula treatment:

  • Mild, painless swelling in the treated area for several days post-procedure
  • Temporary discomfort at the injection site

Rare complications:

  • Injury to nearby nerves (occurs in 2-3% of cases)
  • Temporary muscle weakness in the treated area

It’s worth noting that patients can typically eat normally immediately after the procedure, and there are no incisions or stitches requiring wound care or dressings.

How do the risks of percutaneous treatment compare to traditional surgery?

The percutaneous approach generally carries fewer risks compared to traditional open surgery. However, all medical procedures have potential complications. Patients should discuss the risks and benefits of each treatment option with their healthcare provider to make an informed decision.

Long-Term Outlook for Patients with Ranulas

The prognosis for patients with ranulas is generally favorable, especially with prompt and appropriate treatment. Both percutaneous and traditional surgical approaches offer the potential for permanent resolution of symptoms and removal of the ranula.

Factors influencing the long-term outlook:

  • Timely diagnosis and treatment
  • Choice of treatment method
  • Patient compliance with follow-up care
  • Any underlying conditions affecting salivary gland health

With successful treatment, most patients experience complete resolution of their ranula and can return to normal oral function without long-term complications.

Is there a risk of ranula recurrence after treatment?

While treatment aims to permanently resolve ranulas, there is a small risk of recurrence, particularly if the underlying cause of salivary gland damage is not addressed. Regular follow-up appointments and maintaining good oral hygiene can help monitor for any signs of recurrence and ensure prompt intervention if needed.

When to Seek Medical Attention for a Suspected Ranula

Recognizing the signs of a ranula and seeking timely medical attention is crucial for optimal treatment outcomes. You should consult a healthcare provider if you notice:

  • A soft, painless swelling under your tongue or chin, approximately 2-3 inches in diameter
  • Gradual growth of the swelling over time
  • Any changes in your ability to speak, swallow, or breathe comfortably
  • Recurring swelling that empties and refills

Early diagnosis and treatment can help prevent complications and ensure the most effective management of the condition.

Which medical specialists typically treat ranulas?

Ranulas may be treated by various specialists, depending on the specific case and available expertise. These may include:

  • Oral and maxillofacial surgeons
  • Otolaryngologists (ear, nose, and throat doctors)
  • Interventional radiologists (for percutaneous treatments)
  • Pediatric specialists (for ranulas in children)

Your primary care physician can provide an initial evaluation and refer you to the appropriate specialist based on your specific case and local healthcare resources.

Understanding ranulas, their causes, symptoms, and treatment options empowers patients to seek timely medical attention and make informed decisions about their care. With advancements in minimally invasive treatments, such as the percutaneous approach developed at Nationwide Children’s Hospital, patients now have access to effective alternatives to traditional surgery. By recognizing the signs of a ranula and consulting with healthcare providers promptly, individuals can ensure the best possible outcomes and maintain optimal oral health.

Causes, Symptoms, Diagnosis and Treatment



Nationwide Children’s Hospital


Meet Dr. Murakami

Improving children’s lives through innovative imaging

Close Video