Answer to yesterday’s quiz: According to the authors of the - TopicsExpress



          

Answer to yesterday’s quiz: According to the authors of the latest Case Record of the Massachusetts General Hospital, which one of the following findings is considered to be pathognomonic for dermatomyositis? A. Gottron’s papules. B. Heliotrope rash. C. Malar rash. D. Periungual erythema and edema. The answer is A. Gottron’s papules are erythematous papules that overlie interphalangeal and metacarpophalangeal joints, elbows, and knees. They are pathognomonic for dermatomyositis. A heliotrope rash is seen in 30 to 60% of patients with dermatomyositis. Periungual erythema and edema are less specific signs that may be seen in dermatomyositis and other connective-tissue diseases, such as systemic lupus erythematosus. Malar rash is not pathognomonic for dermatomyositis. nej.md/1l4FVFr
Posted on: Tue, 17 Jun 2014 14:00:00 +0000

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