Dermatographism, Urticaria, Urticaria, Pressure, Urticaria, Physical - DermAtlas

Contributor

Bernard Cohen, MD

Diagnosis

dermatographism urticaria urticaria, pressure urticaria, physical

Body Site

leg thigh

Age

12 years

Pigmentation

light

Organization

grouped, clustered uniform

Color

white/hypo red

Morphology

edema

Pattern

symmetric

Comments

This healthy 12-year-old girl developed innocent but very cool looking pressure urticaria while sitting on a chair with uniformly distributed 5 mm holes. The lesions resolved 20 minutes later.

Description

well demarcated uniform 5 mm edematous flat topped papules with a 1-2 mm surrounding red ring

Image Added

9/5/2010 18:52:25

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Other Resources

PubMed Medline Plus Medscape

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