Fig. 1.
Renal biopsy findings. A Light microscopy image showed endocapillary and mesangial proliferation (H&E stain, original magnification ×200). B A glomerulus showed lobulation of glomerular tuft, eosinophilic subendothelial deposits (arrows), double contour of the glomerular basement membrane (arrowheads), and cellular crescent formation (PAM-Masson stain, original magnification ×200). C Immunofluorescence micrographs showed positive staining for C3c and C1q in mesangium and periphery. However, stainings of IgG and IgA were scarce. D Subendothelial electron dense deposits (arrow) were found in electron micrograph.