Henoch Schonlein Purpura - DermAtlas - Dermatology Image Atlas

Contributor

Greg Hosler, MD, PhD

Diagnosis

Henoch Schonlein purpura

Body Site

leg trunk

Age

14 years

Pigmentation

light

Organization

scattered

Color

purple

Morphology

papule

Pattern

symmetric

Comments

This is a pretty typical case of Henoch-Schonlein purpura. This child developed a purpuric rash on his lower extremities. He does not have any other known medical issues, but HSP has been associated with systemic findings, specifically renal disease. The histology is of a leukocytoclastic vasculitis. Occasionally eosinophils are present. The diagnosis can be confirmed using direct immunofluorescence studies and demonstrating IgA lodged in vessels.

Description

Small vessels show fibrinoid necrosis of their walls with an intense neutrophilic infiltrate. There is leukocytoclasia and occasional eosinophils.

Image Added

2/7/2007 21:50:51

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Other Resources

PubMed Medline Plus Medscape

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