Fig. 6
From: MDCT of blunt renal trauma: imaging findings and therapeutic implications
a–d Laceration of the ureteropelvic junction (a and b) and avulsion of the ureteropelvic junction (c and d) (AAST grade V both). On the 3-mm-thick multiplanar reconstruction (MPR) axial images acquired during the delayed phase of the study in two different patients (a and c) a hyperdense urine leakage can be observed medially to the kidney hilum (arrowheads), a finding suspicious for a ureteropelvic junction lesion. The volume-rendering technique (VRT) reconstructions of the same series (b and d) show that, in the first case (b), the downstream ureter is opacified by hyperdense urine, therefore excluding a complete ureteropelvic disconnection, whereas in the second case (d), no opacified urine can be observed in the downstream ureter, indicating therefore a complete ureteropelvic avulsion