Unbound MEDLINE

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.

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  • Publisher Full Text
  • Authors

    Tallon B, Blumental G, Bhawan J

    Source

    Clinical and experimental dermatology 34:8 2009 Dec pg e895-7

    MeSH

    Buttocks
    Friction
    Humans
    Male
    Middle Aged
    Porokeratosis
    Prognosis
    Pruritus

    Pub Type(s)

    Case Reports
    Journal Article
    Review

    Language

    eng

    PubMed ID

    20055860