Computed tomographic diagnosis of renal infarction.

Two cases of renal infarcts diagnosed on CT scans are presented which demonstrate findings that should be identifiable and diagnostic to indicate renal infarction. The examination is more reliable and specific if it is performed after the administration of intravenous radiographic contrast material. The contrast can be given either by a bolus or an infusion injection. The findings after contrast-enhanced scan should be specific enough to identify the cause of the patient's symptoms. A percutaneous CT guided biopsy can be performed to confirm the diagnosis.