Dermatografismo - de cerca
El dermatografismo es una condición en la que arañazos leves de la piel originan ronchas o verdugones debido a la liberación de histamina, que causa la dilatación de los vasos sanguíneos pequeños (capilares), provocando enrojecimiento e hinchazón localizada.
Last reviewed 5/6/2012 by David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Stuart I. Henochowicz, MD, FACP, Associate Clinical Professor of Medicine, Division of Allergy, Immunology, and Rheumatology, Georgetown University Medical School. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.
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