KIDNEY AND URETER - Renal calculi

This shows a kidney with dilated pelvis and calyces together with the ureter; just past the pelvi-ureteric junction there is a small amount of calculous debris together with some blood clot, while the lower end of the ureter is distended by a stone which does not, however, fill the dilatation. The outer surface of the kidney shows persistent lobulation but no obvious scarring; the markings at the upper pole are probably artefact.