We report a case of neurothekeoma occurring in the gingiva of the anterior part of the mandible. A 48-year-old man visited our clinic on November 13, 2002 because of a gradually enlarging mass in the gingiva of the anterior part of the mandible. Oral examination revealed a pedunculated mass measuring 13×30×15mm. The histological diagnosis of a biopsy specimen was epulis fibrosa. After admission to our hospital, mass excision with extraction from the right canine to the left premolar was performed under general anesthesia on January 21, 2003. The surgical specimen was histologically diagnosed as neurothekeoma. On immunohistochemical examination, the tumor cells were positive for vimentin, NSE, and S-100 protein. There was no local recurrence after surgery.
