Dermatographism on the back
In dermatographism, hives are readily produced if the skin is lightly scratched.
Review Date: 10/28/2008
Reviewed By: Michael Lehrer, M.D., Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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