Light micrograph showing renal thrombotic microangiopathy with intracapillary glomerular thrombi

Light micrograph showing multiple intracapillary glomerular thrombi (arrows) typical of a thrombotic microangiopathy as can be seen in any of the forms of the hemolytic uremic syndrome.

Light micrograph of a normal glomerulus. There are only one or two cells per capillary tuft, the capillary lumens are open, the thickness of the glomerular capillary wall (long arrow) is similar to that of the tubular basement membranes (short arrow), and the mesangial cells and mesangial matrix are located in the central or stalk regions of the tuft (arrows).