A rare case of large submandibular sialolith with spontaneous extrusion

Sialolithiasis is one of the commonest disease of salivary glands. Submandibular salivary gland or its duct is a major site of sialolithiasis and it is always leads to sialadenitis. However large sialolith formation and self-extrusion is a rare condition. A case of submandibular sialolithiasis is reported where patient presents with recurrent submandibular swelling and subsequently end up with a spontaneous extrusion. The mechanisms and management of the salivary gland calculi are also discussed.