Fig. 1

a Collapsing glomerulopathy with segmental collapse of the capillary tuft and prominence of the overlying epithelial cells (400×, Jones stain), b cholesterol emboli in a larger caliber artery in a patient with atheroembolic disease (200×, Jones stain), and c chronic endothelial injury with subendothelial accumulation of electron lucent material, new matrix formation, and cellular interposition (transmission electron microscopy, 7100× )