Rapidly progressive glomerulonephritis due to anti-glomerular basement membrane disease accompanied by IgA nephropathy: a case report.

Anti-glomerular basement membrane (anti-GBM) disease is characterized by autoantibodies against antigenic site on type IV collagen of the GBM. The coexistence of anti-GBM disease and other immune complex mediated glomerulonephritis is common. Herein, we describe a patient presented with rapidly progressive glomerulonephritis, who was diagnosed as IgA-mediated nephropathy and was found to have abundant serum anti-glomerular basement membrane IgG antibodies. The patient's renal function improved considerably with intensive immunosuppressive therapy.