The specimen is a left kidney which has been sectioned to reveal an area of old infarction situated within the upper pole. In this area the normal cortico-medullary demarcation is effaced. There is thinning of both the cortex and medulla. The remainder of the kidney shows some degree of lobulation with stippling of the capsule surface and cortical thinning. This latter feature is consistent with benign nephrosclerosis. The organised area of renal infarction was an incidental finding from the post mortem of an elderly female who had died of bronchopneumonia.