Postoperative renal cortical necrosis in a patient with contralateral remnant kidney

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A 58-year-old woman was referred to nephro-logy department because acute kidney injury had deve-loped after left hemicolectomy and partial ureterectomy due to left ureterocolic fistula with ureteral stone. She had a history of left partial nephrectomy because of traumatic renal injury thirty seven years ago. Her ba-seline serum creatinine level was 0.9mg/dL. Two days after the operation, serum creatinine level had increa-sed to 2.1mg/dL with oliguria. Contrast-enhanced ab-dominal computed tomography (CT) showed decreased perfusion in right renal cortex sparing medulla, which is the characteristic finding of renal cortical necrosis (Figure-1). Her renal function did not recover althou-gh emergency hemodialysis with conservative manage-