De Simone Clara, Paradisi Andrea, Massi Guido, Proietti Ilaria, Capponi Angela, Amerio Pier Luigi, Capizzi Rodolfo
Department of Dermatology, Università Cattolica del Sacro Cuore, Rome, Italy.
J Am Acad Dermatol. 2007 Oct;57(4):665-8. doi: 10.1016/j.jaad.2007.03.020.
Porokeratosis of Mibelli is a disorder of epidermal keratinization characterized by annular plaques with an atrophic center surrounded by a keratotic wall. We report a case of a giant verrucous porokeratosis of Mibelli mimicking psoriasis that developed in a patient with psoriasis and therefore went unrecognized for a long time. Histologically the lesion combined features of porokeratosis at the periphery and of psoriasis at its center, a picture recently described as "psoriasis encircled by porokeratosis." The possible pathogenetic relationship between psoriasis and the development of porokeratosis is also discussed.
米贝利汗孔角化症是一种表皮角化异常疾病,其特征为环形斑块,中央萎缩,周围有角化性边缘。我们报告一例巨大疣状米贝利汗孔角化症病例,该病例酷似银屑病,发生于一名银屑病患者,因此长期未被识别。组织学上,病变在外周具有汗孔角化症特征,在中央具有银屑病特征,这种表现最近被描述为“汗孔角化症环绕银屑病”。本文还讨论了银屑病与汗孔角化症发生之间可能的发病机制关系。