血管腫上に発生した下唇扁平上皮癌の1例 A case of squamous cell carcinoma of the lower lip occurring on a hemangioma
We report a case of squamous cell carcinoma of the lower lip occurring on a hemangioma. A 79-year-old woman was referred to our hospital because an ulcer had developed on her swollen lower lip. She had a birthmark extending from both sides of the lower lip to the mental region and neck. The birthmark of the lower lip started to swell 15 years ago and grew gradually. She noticed an ulcer on the surface of her enlarged lower lip 6 months ago. A biopsy of the ulcer was performed, and the diagnosis was squamous cell carcinoma occurring on a heman-gioma. We carried out lower lip excision and reconstruction with a free forearm-palmaris longus flap under general anesthesia on May 15, 2000. Histopathological examination showed squamous cell carcinoma occurring on a cavernous hemangioma. There has been no evidence of recurrence or metastasis as of 2 years 11 months postoperatively.
日本口腔外科学会雑誌 52(5), 279-282, 2006-05-20
Japanese Society of Oral and Maxillofacial Surgeons