A Case of Acquired Smooth Muscle Hamartoma on the Sole / 대한피부과학회지

ABSTRACT

Smooth muscle hamartoma (SMH) is a benign proliferation of smooth muscle bundles within the dermis. It arises from either the arrector pili muscles, dartos muscles, smooth muscle cells in blood vessels and lymphatics, muscularis mamillae and areola, or cutaneous adnexa. Acquired smooth muscle hamartoma is very rare, and only 12 cases have been published to date. All reported cases are originated from arrector pili or dartos muscles. Herein, we describe a case of acquired smooth muscle hamartoma which originated from the smooth muscle cells in blood vessels of the right sole. To our knowledge, this is the first reported case which has originated from the smooth muscle cells in blood vessels.