Granular Cell Tumor: Case Report

Patient D.S.O., a 38-year-old black woman who was a smoker for 27 years, sought dental care complaining of “a ball that appeared on the tongue after eating fish and the fishbone stuck into the tongue.” There was a gradual volumetric increase in region corresponding to the dorsum of the tongue for 5 years. On intraoral examination, a soft tissue nodule was found on the dorsum of the tongue, which was exophytic, sessile, single, well-delimited, elliptical, of firm consistency, smooth, white, asymptomatic, and measured about 5 cm. Preoperative laboratory testing was requested: complete blood count, coagulogram, and glucose, all with normal values. An excisional biopsy was performed for histopathologic examination. The clinical diagnosis was irritation fibroma. The histopathologic diagnosis was granular cell tumor. In the postoperative period there were no signs and symptoms. The granular cell tumor is rare tumor with the uncertain histogenesis and shows greater predilection for the oral cavity.