This seven-years old girl was hit by a car. She had hematuria and abdominal pain. The ultrasound showed left renal injury. The CT urogram showed clearly the lower pole fracture in the arterial phase (Fig. 1), with intact upper and lower polar arteries on the angiogram (Fig. 2). The venous phase image (Fig. 3) also showed the fracture well. The CT urogram image showed the injury to the lower pole calyx (Fig. 4) and mild extravasation.