Electron micrograph showing lupus membranous nephropathy

Electron micrograph of lupus membranous nephropathy. The subepithelial immune deposits (D) are characteristic of any form of membranous nephropathy, but the intraendothelial tubuloreticular inclusions (arrow) strongly suggest underlying lupus.

Electron micrograph of a normal glomerular capillary loop showing the fenestrated endothelial cell (Endo), the glomerular basement membrane (GBM), and the epithelial cells with its interdigitating foot processes (arrow). The GBM is thin, and no electron-dense deposits are present. Two normal platelets are seen in the capillary lumen.