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Review
. 2025 Mar;152(1):103327.
doi: 10.1016/j.annder.2024.103327. Epub 2024 Dec 17.

Porokeratosis ptychotropica: Case reports and literature review

Y Jin  1 , T Wu  1 , X Xuan  1 , J Cao  1 , S Chen  2 , C Huang  3
Affiliations
Review

Porokeratosis ptychotropica: Case reports and literature review

Y Jin et al. Ann Dermatol Venereol. 2025 Mar.

Abstract

Porokeratosis ptychotropica (PP) is a rare variant of porokeratosis that frequently mimics the clinical manifestations of various squamoproliferative disorders. It lacks a specific definition and adequate understanding. Diagnosis is difficult clinically and remains controversial in some published cases. Herein we report 9 institutional cases, and we reviewed 43 cases published previously in PubMed to highlight the key clinicopathologic features of PP.

Keywords: Porokeratosis; Porokeratosis ptychotropica; Review.

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Conflict of interest statement

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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