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Clinical and Histopathological Characteristics of 70 Cases with Submandibular Sialolithiasis

By  幸江 山村 and  俊雄 吉原


Seventy patients with sialolithiais of the submandibular glands were treated surgically in our department between 1989~1996. The ages of the patients ranged from 11 to 70. The ratio of males to females was 1 : 1. Sixty out of seventy patients (94%) complained of swellings in the submandibular regions. Fifty-six patients (80%) had only one sialolith in the unilateral Wharton's duct or submandibular gland. Of the 72 removed sialoliths, 50 (69%) were located in the Wharton's duct, 16 (22%) in the submandibular glands, and 6 (8%) in the transitional portion. The size of the sialoliths were mostly between 3~10 mm in major axis, while the largest measured 30 mm. X-ray examinations detected 87% of the sialoliths in the Wharton's duct. A CT scan showed their concise shapes, sizes and locations. The minimum size detected by ultrasonography was 3 mm in major axis. Histologically, the excised submandibular glands were characterized by various degrees of infiltration of the lymphocytes and plasma cells indicating chronic inflammation. The cross-sections of the sialoliths showed lamellar structures. Scanning electronmicroscopically, the sialoliths represented fibrous and/or smooth surfaces, and the insides contained an accumulation of globular structures

Publisher: 東京女子医科大学学会
Year: 1997
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