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Fig. 2 | BMC Nephrology

Fig. 2

From: A rare case of Immunoglobulin A dominant post-infectious glomerulonephritis (IgA PIGN) in a young patient

Fig. 2

A and B Light microscopy showed moderate expansion of the mesangial matrix with mesangial hypercellularity and segmental endocapillary hypercellularity (black arrows) with intracapillary neutrophils (orange arrows) (PAS stain). Original magnification × 400. C and D Electron microscopy showed proliferation of endothelial and mesangial cells and neutrophils (blue arrow) in the lumen. There are several hump-shaped subepithelial electron-dense deposits (black arrows). Original magnification × 5.000 for C and × 8.000 for D. E and F Immunohistology showed dominant staining for IgA and segmental mesangial hypercellularity. (APAAP stain). Original magnification × 400

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