PMC5836224_01
Kidney biopsy is shown. Several glomeruli are noted in the cortex (arrows) (a). A glomerulus showing mild mesangial expansion (arrows) (b). Immunofluorescence microscopy demonstrating mesangial C3 deposition (green staining) (c). Ultrastructural examination revealing mesangial electron-dense deposits (d).
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F1
Tissue analysis showed diffuse mesangial proliferative glomerulonephritis with dominant C3 staining, consistent with C3 glomerulopathy (Fig. 1).
PMC5836224_02