title: Type 3 membranoproliferative glomerulonephritis: clinicopathologic correlations and long-term follow-up in nine patients.
abstract: We studied the renal pathologic findings and results of long-term follow-up (four to 15 years; mean 7.8 years) in nine patients with type 3 membranoproliferative glomerulonephritis (MPGN). We selected these patients because biopsy specimens displayed extensive glomerular, subepithelial, electron-dense deposits, besides other changes characteristic of MPGN. We compared these patients with 14 others with type 1 MPGN similarly followed up for a period of 7.4 years. Patients with type 3 MPGN were older, had hypocomplementemia less often, and enjoyed a slightly better outcome. Although six patients with type 3 MPGN had the nephrotic syndrome, end-stage renal failure developed only in two, whereas it developed in five of the 14 patients with type 1 MPGN.
mesh_terms: D000293:Adolescent; D000328:Adult; D001485:Basement Membrane / Q000648:ultrastructure; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D005921:Glomerulonephritis / Q000150:complications / Q000473:pathology*; D006801:Humans; D007676:Kidney Failure, Chronic / Q000209:etiology; D007678:Kidney Glomerulus / Q000648:ultrastructure*; D008297:Male; D008875:Middle Aged; D009404:Nephrotic Syndrome / Q000209:etiology