Fig. 3
From: Prognostic value of morphologic and morphometric analyses in IgA nephropathy biopsies
C4d immune-reactivity in IgAN, MCD and lupus glomerulonephritis biopsies. C4d staining was performed as described in Materials and Methods. a C4d positivity in a lupus glomerulonephritis biopsy (class IV) was observed on the surface of glomerular endothelial cells (positive control) (original magnification Ă— 20). b, c Absence of endothelial or mesangial C4d staining in MCD (negative control) and IgAN glomeruli. (original magnification Ă— 20)