Patel Utpal, Terushkin Vitaly, Fischer Max, Kamino Hideko, Patel Rishi
The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, USA.
Dermatol Online J. 2012 Dec 15;18(12):7.
Eruptive vellus hair cyst (EVHC), described initially in 1977, is a benign dermatologic condition that is characterized by the sudden appearance of monomorphic, follicular, asymptomatic, small papules in children and young adults. The diagnosis is based on the histopathologic findings of stratified-squamous epithelium with a granular layer that surrounds a cystic space filled with laminated keratin and a variable number of vellus hair cysts. EVHC can be associated with steatocystoma multiplex. A current hypothesis suggests that EVHC originates from a cystic change at the insertion of the pilosebaceous duct. EVHC is primarily treated for cosmesis with retinoids, surgery, and lasers.
发疹性毳毛囊肿（EVHC）于1977年首次被描述，是一种良性皮肤病，其特征为在儿童和年轻人中突然出现形态单一、毛囊性、无症状的小丘疹。诊断基于组织病理学发现，即分层鳞状上皮伴有颗粒层，围绕着一个充满板层状角蛋白和数量不等的毳毛囊肿的囊性腔隙。EVHC可与多发性皮脂囊肿相关。目前的一种假说认为，EVHC起源于皮脂腺导管插入处的囊性改变。EVHC主要通过维甲酸、手术和激光进行美容治疗。
