A Case of Steatocystoma Simplex Involving the Scalp.
Steatocystoma is a benign adnexal tumor originating from the pilosebaceous duct junction which can be classified into two groups (steatocystoma simplex and steatocystoma multiplex). Steatocystoma simplex, which presents as a solitary lesion, is very rare. Steatocystoma simplex occurs most commonly on the face and the case reported herein involving the scalp is extremely rare. A 49-year-old man presented for evaluation and treatment of a solitary papule on the right parietal scalp which had persisted for a period of 1 year. The histopathologic examination revealed a thin-walled cyst consisting of stratified squamous epithelium with hyaline cuticle that lacked a stratum granulosum. Based on clinical and histologic findings, we diagnosed this case as steatocystoma simplex of the scalp and report this rare case.
Department of Dermatology, School of Medicine, Catholic University of Daegu, Daegu, Korea.
Dong Nyeok
DN
Hyun
Department of Dermatology, School of Medicine, Catholic University of Daegu, Daegu, Korea.
Jong Hoon
JH
Won
Department of Dermatology, School of Medicine, Catholic University of Daegu, Daegu, Korea.
Joon Soo
JS
Park
Department of Dermatology, School of Medicine, Catholic University of Daegu, Daegu, Korea.
Hyun
H
Chung
Scalp; Steatocystoma simplex