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Dermatomyositis-polymyositis and malignancy. Is there a direct relation?
S Yahata1, T Endo, N Kawaguchi
1First Department of Internal Medicine, Nippon Medical School, Tokyo, Japan.
Abstract:
An association between dermatomyositis-polymyositis and malignancy has been reported. However, controversy exists regarding a direct causal relationship between the two diseases. We describe a patient who had the concurrent onset and parallel clinical course of dermatomyositis and malignancy, and discuss the possible mechanisms for the association of the two disorders.