Two Pilosebaceous Cysts with Apocrine Hidrocystoma in One Biopsy Site: A Spectrum of the Same Disease Process?
A 28-year-old woman presented with multiple, asymptomatic, erythematous to bluish papules located on the chest. Histopathologically, three round, well defined cystic structures were seen on the upper and lower dermis. The first cyst was milia, the second was apocrine hidrocystoma and the other, largest cyst was an eruptive vellus hair cyst (EVHC). A diagnosis of multiple pilosebaceous cysts combined with apocrine hidrocystoma was made. Since the milia and EVHC originate from the pilosebaceous unit, and the apocrine duct opens to the pilosebaceous orifice, we suggest that they can occur simultaneously in the same unit.
Department of Dermatology Inje University School of Medicine, Busan, Korea.
Seon-Wook
SW
Hwang
Department of Dermatology Inje University School of Medicine, Busan, Korea.
Kyung-Jong
KJ
Cho
Department of Dermatology Inje University School of Medicine, Busan, Korea.
Doo-Jin
DJ
Oh
Department of Dermatology Inje University School of Medicine, Busan, Korea.
Deborah
D
Lee
Department of Dermatology Inje University School of Medicine, Busan, Korea.
Jung-Wook
JW
Kim
Department of Dermatology Inje University School of Medicine, Busan, Korea.
Sung-Wook
SW
Park
Apocrine hidrocystoma; Eruptive vellus hair cyst; Pilosebaceous cyst