Ureteral injury due to blunt abdominal trauma.

Ureteral injury is usually due to abdominal penetrating trauma or surgical insult. It has seldom been reported in patients with blunt abdominal trauma. A 20-year-old man presented with left flank and inguinal area pain after blunt abdominal trauma sustained in a motor scooter accident. Acute hydronephrosis and hematuria were noted. Retrograde pyelography and ureteroscopic examination revealed left distal ureter edema with obstruction. The hydronephrosis resolved after temporary double-J-stenting.