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Henry Ford Hospital Medical Journal

Abstract

Two patients with erosive, seropositive rheumatoid arthritis developed polymyositis during treatment with D-penicillamine. In both patients the HLA tissue typing revealed the presence of DR4. The myopathy improved promptly after withdrawal of D-penicillamine and institution of prednisolone therapy. In one patient, hypersensitivity to D-penicillamine was demonstrated by a lymphocyte stimulation test. This is the first case of D-penicillamine-induced polymyositis in which T-cell proliferative response to D-penicillamine was demonstrated in vitro.

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