Did you know that stones can grow in the ducts of your salivary glands? Darsi knows all too well, having had one himself! He first noticed his stone on an x-ray back when he was studying in Toronto.
Salivary gland stones (also known as sialoliths) typically result from a slow flow rate in the duct (due to various mechanical reasons) and certain saliva quality. Calcium and phosphate salts precipitate out of the saliva, and the stone grows by addition in the same way that you make a snowball.
The most common site for stone formation is the submandibular gland, which is underneath your lower jaw. Sialoliths occur more frequently in men in their middle and later years. Patients may be asymptomatic, but they usually experience some degree of pain or swelling in the floor of the mouth and in the suspect gland. This discomfort intensifies at mealtimes when the gland is stimulated and saliva begins to flow.
Small stones can often be “milked out” through the gland duct using gentle pressure. If the stone is larger, or the duct is significantly obstructed, the stone may need to be surgically removed. It is best to have the stone evaluated by an oral and maxillofacial surgeon or otorhinolaryngologist (head and neck surgeon) to determine the most appropriate course of action.