Fig. 2

Histopathological findings in the kidney transplant biopsy. The top left (Jones) shows increased numbers of mononuclear cells in the glomerular capillaries (arrows). Jones silver stain, original magnification × 400. The top right (IgM) shows IgM dominant deposits along the glomerular basement membrane in brown. IgA and IgG were virtually negative. Immunoperoxidase, original magnification × 630. The bottom left shows strong C1q co-deposition along the glomerular basement membrane in brown. Immunoperoxidase, original magnification × 630. The bottom right shows subendothelial electron dense immune complex deposits on the inner side of the glomerular basement membranes (arrows), typical for endocapillary proliferative GN or MPGN type I. Original magnification × 10,000