Sialolith usually occurs in the submandibular gland and its occurrence in the parotid gland is relatively rare. Especially the occurrence of sialoliths in the bilateral parotid gland is very rare and only three cases of such a case have been reported. In this paper, a case of sialolithiasis occurring in the bilateral parotid gland was reported.
The patient, a 65-year-old Japanese male, visited our clinic complaining of swelling of the right buccal mucosa including the orifice of the parotid duct. Roentogen examination revealed the presense of sialoliths in the right parotid duct and the deep lobe of the left parotid gland. Extirpation of the sialoliths of the right parotid duct was performed under local anesthesia, and 6 sialoliths of 2 mm or less in diameter were observed. Though extirpation of the left sialolith was not performed because of lack of objective and subjective symptoms, long-term follow up is considered nessesary.