Ross J H, McGinty F, Brewer D G
Nephron. 1980;26(4):184-6. doi: 10.1159/000181984.
8 patients who developed proteinuria whilst receiving penicillamine for rheumatoid arthritis have been studied. Light microscopy of renal biopsy specimens showed evidence of an extramembranous nephropathy in 6 cases, with epimembranous spikes infrequently described previously in association with penicillamine.