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[Rare association of acute febrile neutrophilic dermatosis (Sweet syndrome) with rheumatoid arthritis].

We report on a 57 year old women with a long-standing course of severe rheumatoid arthritis, developing acute febrile neutrophilic dermatosis (Sweet's syndrome) in an active phase of the arthritis. Sweet's syndrome has been reported with hematologic and solid malignancies, infections and several autoimmunopathies, but in only three cases is there a coincidence with rheumatoid arthritis. We review Sweet's syndrome with regard to pathogenesis and associated disorders.