1992 Volume 85 Issue 12 Pages 1943-1947
The incidence of neurinoma in the oral-mandibular region is relatively low. It is usually seen in the tongue. We treated a patient with neurinoma of the floor of the oral cavity-a rare site for neurinoma.
An 83-year-old woman complained of a mass on the floor of her mouth. Examination on her first visit revealed a firm elastic mass the size of an egg on the floor of her oral cavity. There was no tenderness, and no difficulty in speaking, chewing or swallowing. Examination of a biopsy revealed Antoni type A neurinoma.
The tumor was removed under general anesthesia. No adhesion to surrounding tissue were encountered, and the mass was easily resected by extra-capsular dissection. S-100 protein staining was positive within the tumor cells, leading to the immunohistochemical diagnosis of neurinoma.
