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Polyarteritis nodosa in human immunodeficiency virus infection: report of four cases and review of the literature.

Four patients with HIV infection were diagnosed as having panarteritis nodosa type vasculitis in muscle samples taken by biopsy. Fever, weight loss and neuromuscular symptoms were the major complaints. All but one were successfully treated with a low dose of prednisone. The other patient refused treatment, but her muscular complaints did not worsen during 9 months of follow-up. Previously reported cases in the literature are reviewed.