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Sialocele
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Overview of Sialocele 
A Sialocele is a collection of saliva. Other names used interchangeably include salivary mucocele or salivary retention cyst. Imaging studies will demonstrate a smoothly bordered cystic mass in or near a salivary gland. Two major mechanism seen to exist for the development of a silicate. When it occurs underneath the tongue, it is referred to as a Ranula.
Causes of Sialocele
Partial obstruction of a salivary duct and disruption of the salivary duct appear to be the most common causes of Sialocele.
In Partial obstruction, the end of the duct will enlarge and form a cyst. This obstruction may be caused by stones, inflammation or tumors. The cyst is lined by normal epithelium.
When a duct is disrupted, it is usually the result of trauma or surgery. This leads to saliva being extruded into tissue of the mouth. This extrusion of saliva produces an inflammatory response by the body that attempts to wall off this abnormal accumulation of saliva within the tissues. A pseudonyms develops. Here, there is no normal lining of the cyst. The mechanism of injury responsible for the extravasation of saliva is often minor and frequently not recalled by the patient.
Signs and Symptoms of Sialocele
A Sialocele is a slowly developing soft to firm fluid filled swelling under the tongue, the neck or the pharyngeal region. It is usually painless. Due to increased salivary secretions the lump may increases during eating and decreases in size when salivary secretion decreases. If the swelling is very large it may interfere with eating and swallowing, or affect breathing if they compress the pharyngeal region.
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Medical Content Last Updated on 07/12/2008
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