Abstract
We carried out a clinico-pathological examination in 7 cases of minor salivary gland sialolithiasis treated in the department of Oral and Maxillofacial Surgery, Kurume University, during the past 12 years (1977.1-1988.12). The results obtained were as follows; The average age of the patients was 63 years, with almost no difference between males and females. The MSGS in 3 cases appeared in the upper lip, 2 in the lower lip and 2 in the buccal mucosa. All these lesions were originated in the labial gland. Two stones and more, mostly 12 stones were found 6 cases. The stones ranged from 0.5 to 3mm in diameter, mostly round in shape with lamella structure. Squamous metaplasia of the ductal epithelium was noted in 4 cases and oncocytes appeared in 2 cases. MSGS was observed in 7 (3.7%) among 190 cases of “sialolithiasis”, of which incidence is relatively high as compared with those reported in previous studies.