[Circumcaval ureter: a review of 5 cases].

From 1985 to 1990, 5 cases of congenital circumcaval ureter were treated. All of the cases were definitely diagnosed by ultrasonography, IVP and retrography. Four of them were confirmed surgically. Ultrasonography was found to be important in the diagnosis of this disease. During the operation, we excised the narrow segment of ureter caused by long term pressing and relocated the ureter behind the inferior vena cava. When rejoining the two ends of ureter, a double "J" stent was put inside the ureter. These procedures are helpful to the healing of incision and could prevent the anastomosis of ureter from restricture.