A Case of Becker's Nevus with Smooth Muscle Harmatoma

Ki Hong Lee, Yeon Soon Lim, Ki Bum Myung

Copyright ⓒ 1992. Ewha Womans University School of Medicine. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Published Online: Jul 24, 2015

Abstract

We report a case of Becker's nevus with smooth muscle harmatoma in a 24-year-old man, who showed localized excessive-hairy, dark brown colored patch including pin-head sized follicular papules on the left side of bucca, mandible and neck. Histologic examination revealed hyperpigmentation of the basal layer of epidermis and hyperplasia of smooth muscle bundles in the dermis.

Keywords: Becker's nevus; Smooth muscle harmatoma