Imaging in renal trauma

Figure 11 Vascular injury. Active contrast extravasation. Contrast enhanced computed tomography (CECT) of a 25-year-old male patient who sustained renal tubular acidosis. A: Axial section; B: Coronal thick maximum intensity projection (MIP) image in the late arterial phase showing an area of contrast extravasation (arrow) along the anterior surface of upper pole of right kidney which do not confine to any vascular structure, which in the immediate delayed phase is seen to spread over an area (arrow) in the perinephric region and has a density higher than the adjacent vessels.