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dermatology q - samomcos
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03-22-2009, 05:36 PM
A 2 y.o. girl develops red raised lesions, erythema of the skin on her face, neck and shoulders, and itching after a haircut. She has...... (q. courtesy my daughter again
 )1. angioedema 2. mastocytosis 3. dermatographism 4. eczema
03-22-2009, 07:00 PM
dermatographism is urticaria from mechanical pressure (due probably to mast cells degranulation)
03-22-2009, 08:12 PM
hair/irritants---------> patient scratches skin------> mast cell degranulation------>wheals and itching
they have a very brisk and hyperactive line, wheal and flare reaction |
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