We report a patient who presented with the classical features of fenoprofen-induced nephropathy. Initial response to a cessation of the drug and prednisone therapy was recovery of renal function, but proteinuria persisted. One year later, he experienced recurrence of the nephrotic syndrome with sustained renal failure. A clear progression from minimal-change lesions to focal glomerulosclerosis was shown in sequential renal biopsies. Not previously reported, this evolution is suggestive of the possibility that fenoprofen nephropathy may lead to chronic renal failure.
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