Thin basement membrane nephropathy: a report of two cases.

Two cases of thin basement membrane nephropathy were collected from 233 renal biopsies which contained adequate material for diagnosis. Both patients had presented with persistent hematuria. Thin glomerular basement membrane was the sole significant abnormality found in their renal biopsies. A complete workup of renal biopsy including light microscopy, immunofluorescence study and electron microscopy is mandatory for patients with unexplained hematuria.