MedlinePlus Medical Encyclopedia: Dermatomyositis, Gottron's papules on the hand

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Dermatomyositis, Gottron's papules on the hand

This violet-colored inflammation (erythema) over the knuckles is caused by Dermatomyositis. Other skin conditions produce more redness, while the color of this lesion is violet. There may also be inflammation in the muscle tissue.

Update Date: 12/24/2007

Updated by: David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.; and Paul H. Plotz, MD, Chief, Arthritis and Rheumatism Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases. Previously reviewed by Kevin Berman, MD, PhD, Associate, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network (4/12/2007).

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