Salivary Gland Swelling (Sialadenitis)

Overview: 

Salivary gland swelling, a medical term referred to as sialadenitis, refers to inflammation, enlargement, or swelling of one or more salivary glands. These glands are responsible for producing saliva, which has a crucial role in digestion, moistens the oral cavity, and provides protection against bacterial invasion.

When salivary glands are swollen, blocked, or infected, patients typically report some degree of pain, difficulty with consuming food, and swelling in the jaw, cheek, or neck region. The swelling and pain can develop suddenly due to infection or may be a gradual development due to obstruction from salivary gland stones.

Salivary gland swelling may develop in both adults and children and can involve the parotid, submandibular, or sublingual glands. Most cases of sialadenitis are mild and may resolve with appropriate medical treatment. However, persistent or recurrent symptoms may necessitate additional evaluation.

Proper early diagnosis and treatment will help alleviate the symptoms, allow normal saliva flow to resume, and potentially eliminate the possibility of complications developing.

What Is Salivary Gland Swelling?

Salivary gland swelling refers to the inflammation, swelling, or enlargement of the glands that produce saliva. The swelling occurs due to blocked saliva flow, infection, or inflammation of the gland tissues.

Saliva serves many purposes in the oral cavity, including breaking down food, facilitating swallowing, and protecting the mouth from harmful bacteria. When there is an obstruction in the saliva flow or a reduction in saliva production, the individual may develop pain, a dry mouth sensation, and swelling in the affected gland.

Sialadenitis can occur unilaterally, bilaterally, acutely, or chronically. Acute infections often cause a rapid onset of swelling and pain, whereas chronic conditions can lead to episodic swelling of the salivary gland.

Even though most cases of salivary gland swelling are benign, it is important for individuals experiencing prolonged salivary gland swelling to receive a medical evaluation to identify the potential cause(s) and provide recommendations for proper treatment.

Which Salivary Glands Are Affected?

There are three primary pairs of salivary glands in humans, and each pair can develop swelling:

Parotid Glands

The parotid glands are the largest salivary glands, and they are positioned anteriorly and slightly inferior to the earlobe. Typically, swelling of this gland will appear as fullness in the cheek/jawline region. Parotid gland swelling is most commonly due to infections or inflammation of the gland.

Submandibular Glands

Submandibular glands are located under the mandible. They produce a significant portion of the saliva produced in the oral cavity and are commonly affected by salivary gland stones that obstruct the salivary ducts and impede saliva flow, leading to swelling.

Sublingual Glands

Sublingual glands are located under the tongue. Even though the sublingual glands are less likely to be involved than the parotid and submandibular glands, swelling of the sublingual gland may develop secondary to infections, cysts, or other disorders of the salivary gland.

Determining which salivary gland is involved is critical in determining the potential cause of the swelling and selecting the best course of action for treating the problem.

Sialadenitis Causes 

Salivary gland swelling may occur due to a variety of underlying conditions that influence the flow of saliva or the production of saliva.

• Salivary Gland Stones: Salivary gland stones (also called sialolithiasis) are the most common cause of salivary gland swelling. Salivary gland stones are calcifications that form in the salivary ducts. They may block the flow of saliva through the salivary ducts and cause swelling and pain in the gland.
• Infections: Infection of the salivary glands can occur due to bacterial or viral infections. If saliva flow is decreased or blocked, bacteria can build up in the gland and infect it.
• Inflammation: Chronic inflammation of the salivary glands may occur due to various underlying medical conditions, autoimmune diseases, or repeated infections of the salivary glands.
• Tumors: While less common, benign or malignant tumors may grow within the salivary glands and cause swelling. Approximately 80% of salivary gland tumors are benign; however, the individual should consult a specialist for an accurate diagnosis.

Understanding the underlying cause of the salivary gland swelling will assist in making informed treatment decisions and reducing the likelihood of recurrence.

Risk Factors of Salivary Gland Swelling 

There are certain factors that may increase the risk of developing salivary gland swelling.

• Dehydration: Reduction in fluid intake may reduce saliva production and/or make saliva thicker, and increase the risk of developing salivary gland stones and ductal obstructions.
• Poor Oral Hygiene: Bacteria present in the mouth may spread to the salivary glands and cause infections, especially when good oral hygiene practices are not followed.
• Recurring Infections: Patients who have had multiple infections of their salivary glands are at a higher risk of having future episodes of salivary gland swelling.
• Decreased Saliva Production: Medications, medical conditions, and aging can all contribute to a decrease in saliva production and increase the risk of developing inflammation and infections of the salivary glands.

By identifying these factors, your healthcare provider can suggest methods to minimize the risk of developing salivary gland swelling and its recurrence.

Symptoms of Sialadenitis

The symptoms of salivary gland swelling can vary based on the underlying cause of the swelling and the severity of the swelling.

Some common symptoms include:

• Swelling in the jaw, cheek, or neck regions
• Pain or discomfort, primarily during meals
• Tenderness to touch over the affected gland
• Dry mouth
• Difficulty opening the mouth or swallowing
• Fever if an infection is present
• Often, foul-tasting saliva

As the salivary glands become more active when food is being consumed, pain becomes more pronounced. This is primarily due to the increased pressure created in the gland when saliva cannot drain properly. If you continue to experience symptoms of salivary gland swelling, and the symptoms worsen, you should schedule a consultation with a healthcare provider.

Salivary Gland Swelling in Adults vs Children

Salivary gland swelling can develop in individuals of any age; however, the causes and patterns may vary greatly between adults and children.

• Adults: In adults, salivary gland swelling is generally caused by salivary gland stones, chronic inflammation, or infections. Dehydration, medications, or underlying medical conditions may also contribute to the reduction in saliva flow and gland obstruction.
• Children: In children, swelling of the salivary glands is generally caused by viral infections or birth defects that affect the salivary ducts. Chronic swelling of the parotid glands can occur in children with conditions that impact gland function.

Because the causes of salivary gland swelling can vary based on the age of the individual, it is recommended that a healthcare provider evaluate the individual to determine the best course of treatment.

How Is Sialadenitis Diagnosed?

Typically, a comprehensive medical history and physical examination are utilized to diagnose salivary gland swelling. A healthcare provider will physically examine the individual to inspect for swelling, tenderness, or evidence of an infection in the gland area. Additionally, the healthcare provider will inspect the flow of saliva from the gland ducts.

Depending on the findings of the initial evaluation, additional diagnostic testing may be necessary. These may include:

• Diagnostic Imaging: Diagnostic imaging studies may be conducted to detect salivary gland stones, infections, or tumors.
• Laboratory Testing: Blood tests or other laboratory evaluations may be ordered if an infection or systemic disease is suspected.

An accurate diagnosis will enable the healthcare provider to determine the cause of the swelling and provide recommendations for managing the condition.

Treatment Options for Sialadenitis in Dubai

Treatment for salivary gland swelling is dependent upon the underlying cause and severity of the swelling.

• Medical Management: For mild cases of salivary gland swelling, medications that can address the infection, inflammation, or pain may be prescribed. Your healthcare provider may recommend increasing hydration and attempting to stimulate saliva production.
• Stones Removal: When salivary gland stones exist, procedures to remove the stone and restore normal saliva drainage may be required.
• Salivary Gland Surgery: Salivary gland surgery may be considered for severe cases where the stone size is too large, recurrent infections occur, or a tumor exists in the salivary gland. Surgery aims to remove the obstruction or affected gland while preserving surrounding structures, when possible.

Healthcare professionals in Dubai utilize state-of-the-art diagnostic equipment and innovative treatment options to effectively manage salivary gland conditions while minimizing the recovery period.