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Trauma of the Lower Urinary Tract: Urethral Trauma 

Trauma of the Lower Urinary Tract: Urethral Trauma
Trauma of the Lower Urinary Tract: Urethral Trauma
Emergency Radiology

Cinthia Cruz-Romero


Isolated traumatic ureteral injury must be considered in the differential diagnosis of blunt trauma. It is most commonly seen in the setting of underlying hidroureter caused by obstructive calculus. Diagnosis is established on computer tomography. The most common associated fracture to ureteral injury is pelvic fracture. The ureteropelvic junction (UPJ) is the most common site of disruption. A non-contrast acquisition before contrast must be performed. Periureteral collection, hematoma, and stranding may or may not be present, hence delayed excretory images should be acquired, and the complete ureter must be visualized. The differentiation of avulsion from complete ureteral tear is crucial. Found abnormalities should be correlated with clinical history and/or variants, such as presence of calculi, known duplications, and recent surgical procedures.

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