口底に生じた筋周皮腫の1例

• Published in: 日本口腔外科学会雑誌 Vol. 66; no. 12; pp. 644 - 649
• Main Authors: 飯田, 一規, 武内, 勝章, 柴田, 敏之, 畠山, 大二郎, 奥田, 孝大, 加藤, 恵三
• Format: Journal Article
• Language: Japanese
• Published: 社団法人 日本口腔外科学会 20.12.2020
• Subjects: 口底; 筋周皮腫
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.66.644

Myopericytoma is a benign tumor characterized by a perivascular proliferation of myoid differentiating oval spindle-shaped pericytic cells, and it is rarely found in the oral cavity. We report a case of myopericytoma in the floor of mouth. A 66-year-old female was referred to our hospital with the chief complaint of a tumorous lesion of the left side of the floor of mouth. Physical examination revealed a movable, elastic-hard and painless mass. CT examinations showed the mass measuring 23 × 11 mm in the floor of mouth. Histological findings from an incisional biopsy suggested a benign tumor with myoid differentiation. A surgical excision was carried out under general anesthesia. A histopathological diagnosis of myopericytoma was made. No evidence of recurrence was observed during the year and a half following surgery.