Acne rheumatism. Report of a case.

A case of acne conglobata with myo-osteoarticular involvement is described. The occurrence of a subacute, symmetrical polyarthritis with radiological changes was the unique feature of this patient. The immunologic work-up demonstrated impairment of delayed hypersensitivity. Control of the systemic symptoms was obtained initially with corticosteroids and during a relapse with indomethacin. Clofazimin was effective in longterm treatment of the acne. Following cessation of all therapy, there has been no evidence of recurrence of either acne or rheumatic symptoms.