Porokeratosis ptychotropica: a lesser-known variant
- 1 December 2009
- journal article
- case report
- Published by Oxford University Press (OUP) in Clinical and Experimental Dermatology
- Vol. 34 (8), e895-e897
- https://doi.org/10.1111/j.1365-2230.2009.03664.x
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.Keywords
This publication has 9 references indexed in Scilit:
- Porokeratosis ptychotropica: A clinically distinct variant of porokeratosisJournal of the American Academy of Dermatology, 2009
- Follicular porokeratosis of Mibelli on the buttocksClinical and Experimental Dermatology, 2009
- Amiloidosis cutánea localizada secundaria a poroqueratosis. Estudio histopatológico retrospectivo de 30 pacientesActas Dermo-Sifiliograficas, 2008
- Genitogluteal porokeratosisJournal of the European Academy of Dermatology and Venereology, 2006
- The Journal of Dermatology, 2006
- Hypertrophic perianal porokeratosis in association with superficial actinic porokeratosis of the legClinical and Experimental Dermatology, 2003
- Frictional amyloidosis: a study of 10 cases.Australasian Journal of Dermatology, 2001
- Porokeratosis and Cutaneous MalignancyDermatologic Surgery, 1996
- An unusual case of porokeratosis involving the natal cleft: porokeratosis ptychotropica?British Journal of Dermatology, 1995