[Erythema elevatum diutinum. A clinicopathologic study of 5 cases].

Erythema elevatum diutinum is a rare condition of unknown etiology listed with cutaneous vasculitis or neutrophilic diseases. Medical records and histopathologic slides of 5 patients with erythema elevatum diutinum were studied to better understand the disease. Lesions were clinically characteristic. All biopsy specimens showed leucocytoclastic vasculitis. The most significant finding is the association of erythema elevatum diutinum whith seronegative rheumatoid arthritis.