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Contributor

Mary Tonsager

Diagnosis

psoriasis koebner phenomenon isomorphic phenomenon

Body Site

hand knuckle

Age

14 years

Pigmentation

medium

Organization

confluent

Color

red

Morphology

papulosquamous (bump, scale)

Pattern

symmetric acral (centripetal - extremity predominant)

Comments

This 14-year-old boy presented with red sharply demarcated plaques with overlying scale. The localization of plaques to the bony prominences of the hands probably represents a koebner phenomenon from minor trauma to the site..

Description

confluent symmetric red scaly plaques

Categories

environmental injury papulosquamous eruptions

Image Added

12/7/2003 22:19:28

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Other Resources

PubMed Medline Plus Medscape

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