Royal Hallamshire Hospital, Sheffield S10 2JF.
Salivary calculi are a common cause of salivary gland disorder and may occur in any of the salivary glands and at almost any age. The stones may be small and intraductal or lie within the gland substance when they may become very large. They cause symptoms by obstructing salivary flow. Diagnosis is usually straightforward, and treatment is aimed at stone removal.