Follicular porokeratosis: Four new cases
Abstract
Porokeratosis, a disorder of keratinisation, is clinically characterized by the presence of annular plaques with a surrounding keratotic ridge. Clinical variants include linear, disseminated superficial actinic, verrucous/hypertrophic, disseminated eruptive, palmoplantar and porokeratosis of Mibelli (one or two typical plaques with atrophic centre and guttered keratotic rim). All of these subtypes share the histological feature of a cornoid lamella, characterized by a column of 'stacked' parakeratosis with focal absence of the granular layer, and dysmaturation (prematurely keratinised cells in the upper spinous layer). In recent years, a proposed new subtype, follicular porokeratosis (FP_, has been described, in which the cornoid lamella are exclusively located in the follicular ostia. We present four new cases that showed typical histological features of FP.
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Date
2017-07-27
Type
Article
Subject
Dermatology
Collections
Citation
Sud A, Shipman AR, Odeke M, Varma K, Read-Jones M, Carr RA. Follicular porokeratosis: four new cases. Clin Exp Dermatol. 2017 Dec;42(8):881-886. doi: 10.1111/ced.13195. Epub 2017 Jul 27.
Journal / Source Title
Clinical and Experimental Dermatology
DOI
10.1111/ced.13195
PMID
28748571
Publisher
Oxford University Press