Fig 6. In secondary forms of immune complex-mediated membranoproliferative glomerulonephritis (such as those caused by chronic infections), the deposits and proliferation are commonly more focal and segmental than in idiopathic membranoproliferative glomerulonephritis type 1 (see Figs 1 and 3).

In Fig 6B, large subendothelial deposits molding under the glomerular basement membrane and occasional mesangial deposits are present (immunofluorescence with anti-C3; original magnification, x400).

View Figure 6A.