papillary necrosis


papillary necrosis

Papillary necrosis of renal papillae Nephrology A complication of acute pyelonephritis, consisting of uni- or bilateral lesions of one or more pyramids, with a white-gray discoloration of the pyramid tips, in a background of renal failure Clinical Renal colic, pyuria Etiology DM, sickle cell anemia, analgesics–aspirin, phenacetin, cyclophosphamide, ischemia, post-obstruction pyelonephritis