Complete ureteropelvic junction (UPJ) disruption is a rare finding after blunt abdominal trauma. High clinical suspicion and close attention to imaging studies are needed to avoid missing a UPJ disruption during initial evaluation. In high grade renal trauma, the best imaging modality to detect collecting system injury and urinary extravasation is computed tomography (CT) scan with delayed excretory phase imaging. Presence of urinary extravasation with lack of contrast material in the distal ureter may suggest a ureteral injury or complete UPJ disruption. We report a case of UPJ disruption with distinct radiologic finding of “bull's-eye” sign after blunt abdominal trauma, which was diagnosed and successfully repaired.
展开▼
