Fig. 3

Histology of biopsy 1.5 months after transplantation. Glomeruli were normal. Patchy and moderate-to-severe infiltration of mononuclear cells in the interstitium and focal infiltration of mononuclear cells in the proximal tubular epithelium were observed. a, c H.E × 400, (b, d) PAS × 40, × 400). Immunohistochemistry demonstrated limited mesangial IgM deposits (f) with no IgG deposition in the glomeruli (e). C4d immunofluorescence result was negative (not shown)