著者

朱 虹 北村 和也 平野 吉雄 小林 知視 田川 俊郎 村田 睦男

出版者

特定非営利活動法人 日本口腔科学会

雑誌

日本口腔科学会雑誌 (ISSN:00290297)

巻号頁・発行日

vol.41, no.1, pp.181-187, 1992-01-10 (Released:2011-09-07)

参考文献数

39

---

Schwannoma occurs everywhere neural tissue exists, but it is relatively rare in oral regions. It orally originates mostly in the tongue and very little in the lips. Recently we experienced a case of schwannoma arising in the left lower lip. The patient was a 73-year-old man and visited our hospital with the chief complaint of a lower lip. The tumor was excised under local anesthesia, and it was found to be an elliptical mass with a capsule measuring 35 × 20 × 20 mm. From both clinical and light microscopical findings it was diagnosed as schwannoma (Antoni A and B type) and was compared with other reports of schwannomas which had been already reported in Japan. From electron microscopical and immunohistochemical findings the origin of the tumor was suggested to be schwann cells in the present study.