Porokeratosis ptychotropica: a lesser-known variant.

Abstract:

:We report a case of the rare porokeratosis variant porokeratosis ptychotropica (PP). A circumferential perianal plaque and the characteristic histology of multiple cornoid lamellae with underlying dermal amyloid deposition were seen. Amyloid deposition was seen in the biopsied intertriginous area of the plaque only, which, in concordance with other cutaneous amyloid deposition disorders, may suggest a role for friction in the pathogenesis of this histological finding. We review the literature on PP and summarize the poor response seen to treatments.

journal_name

Clin Exp Dermatol

authors

Tallon B,Blumental G,Bhawan J

doi

10.1111/j.1365-2230.2009.03664.x

subject

Has Abstract

pub_date

2009-12-01 00:00:00

pages

e895-7

issue

8

eissn

0307-6938

issn

1365-2230

pii

CED3664

journal_volume

34

pub_type

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