<prompt> The Electron Microscopy is viually diagnostic in renal biopsy study ofGoodpastures syndromeChurg-Strauss syndromeAlpo syndromeWegners granulomatosis  <response>: Fully developed Alpo syndrome has characteristic electron microscopic findings. The GBM shows irregular foci of thickening alternating with attenuation thinning and pronounced splitting and lamination of the lamina densa, often producing a distinctive basket-weave appearanceRobbins 9e pg: 924 