D-Penicillamine-induced ANCA-associated crescentic glomerulonephritis in Wilson disease.

Several drugs, including hydralazine and propylthiouracil, can induce antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis. d-Penicillamine was implicated in a few patients with rheumatoid arthritis or systemic sclerosis, but in patients with both diseases, ANCA-associated vasculitides were described in the absence of the drug. Therefore, the role of d-penicillamine treatment could not be established. We report the first case of antimyeloperoxidase antibody-associated vasculitis in a patient treated with d-penicillamine for Wilson disease. Because Wilson disease was never associated with ANCA-related nephritis, this case strongly supports that d-penicillamine can induce ANCA-vasculitis. The presentation and rapidly progressive and potentially severe outcome of this complication dramatically contrast with those of membranous and minimal change glomerulopathy, also induced by the sulfhydryl compound.