title: Steatocystoma multiplex confined to the scalp with concurrent alopecia.
abstract: Steatocystoma multiplex (SM) is an uncommon disorder of the pilosebaceous unit characterized by the development of numerous sebum-containing dermal cysts which rarely involves the scalp. Here, we report a case of a 50-year-old man with multiple cystic nodules and alopecic patches on his scalp. On histopathological examination, the folded cyst was found to be lined by stratified squamous epithelium, while flattened sebaceous gland cells were identified in the cystic wall. Pigment casts were present in the hair papillae and perifollicular regions, suggesting trichotillomania as a possible cause of the observed alopecia. This case appears to represent an unusual clinical manifestation of SM.
authors.affiliation: Department of Dermatology, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea.
authors.forename: Deborah
authors.initials: D
authors.lastname: Lee
authors.forename: Ji-Sung
authors.initials: JS
authors.lastname: Chun
authors.forename: Soon-Kwon
authors.initials: SK
authors.lastname: Hong
authors.forename: Jong-Keun
authors.initials: JK
authors.lastname: Seo
authors.forename: Joon-Hee
authors.initials: JH
authors.lastname: Choi
authors.forename: Jae-Kyoung
authors.initials: JK
authors.lastname: Koh
authors.forename: Ho-Suk
authors.initials: HS
authors.lastname: Sung