A Case of Extraductal Parotid Gland Stone Caused by Repeated Inflammation

Abstract

Sialoliths commonly occur in the submandibular gland, but parotid gland stones are rare. We report a case of extraductal parotid gland stone caused by repeated inflammation. A 49-year-old male with left buccal swelling was referred to our department for endoscopic removal to avoid removal by the extraoral approach after a diagnosis of parotid gland stone at another hospital. Computed tomography showed that the left stone was 6.2×5.2×3.4mm in size. The patient underwent removal of the stone. Because sialendoscopy revealed an extraductal stone caused by inflammation, a buccal skin incision through the fistula was made and the stone was removed. There was no recurrence or stenosis more than 1 year after removal of the parotid gland stone.