Relapse of nephrotic syndrome following remission for 20 years.

Relapse of the nephrotic syndrome in a patient who was in remission for 20 years is discussed. The initial renal biopsy performed 3 years after the onset of the nephrotic syndrome showed focal and segmental glomerulosclerosis (FSGS). The second renal biopsy performed 20 years later was compatible with a diagnosis of minimal change nephropathy (MCN).