우측 귓바퀴 뒷면에 발생한 혈관평활근종 1예

Abstract

Angioleiomyoma is a benign tumor of smooth muscle origin arising from the muscular layer of blood vessel walls. The tumor usually occurs in the lower extremities as a slow-growing, firm, mobile, and occasionally painful nodule. We report a case of angioleiomyoma which occurred on an unusual site, the posterior surface of ear helix.