Porokeratosis, Disseminated - DermAtlas

Contributor

Rakhesh SV, MD

Diagnosis

porokeratosis, disseminated

Body Site

trunk arm

Age

55 years

Pigmentation

dark

Organization

Color

brown

Morphology

papulosquamous (bump, scale)

Pattern

generalized, disseminated central (centrifugal - trunk predominant)

Comments

A 55-year-old man developed asymptomatic disseminated minimally elevated annular papules during childhood. The lesions were stable for over 20 years. There was no family history of similar lesions. Disseminated superficial porokeratosis is a distinct rare type of porokeratosis. Porokeratosis is inherited in an autosomal dominant pattern mostly and is charecterized histopathologically by the coronoid lamella represented clinically by the hyperkeratotic ridge. The classical histological changes are less pronounced in this superficial variant of prokeratosis.

Description

widespread hyperpigmented annular minimally elevated papules

Image Added

1/26/2005 22:51:09

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Other Resources

PubMed Medline Plus Medscape

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