Figure 1. A, B, and C. immunohistochemistry staining - diffuse IgG and C3 granular deposits along the GBM and granular IgA deposits in the mesangium, respectively; D, E, and F: immunohistochemistry staining - strong staining for de forte PLA2R, THSD7A, and IgG4 along the GBM, respectively; G: oil immersion light microscopy image of a specimen stained with Jones methenamine silver - thickened GBM with spikes; H and I: electron microscopy image - subepithelial, mesangial/paramesangial deposits along the GBM - see arrows.* GBM - glomerular basement membrane.