Acute renal cortical necrosis is a rare cause of acute renal failure secondary to ischemic necrosis of the renal cortex. Majority of the patients become dialysis dependent and occasional patients may recover partial kidney function and are dialysis–independent. Acute cortical necrosis is usually a bilateral condition, rarely being unilateral (Blau et al.,1971). The lesions are usually caused by significant prolonged diminished renal arterial perfusion secondary to vascular spasm, micro–vascular injury, or intravascular coagulation. Renal cortical necrosis is usually extensive although local or localized forms occur.Most of the patients present as acute renal failure and suspicion of the condition arises

following prolonged oliguria and/or anuria. The kidney biopsy is the gold standard for the

diagnosis.