[Retrocaval ureter in children: surgical approach based on the obstructive pattern in the diuretic renogram with 99mTc DTPA].

Retrocaval ureter is a rare disease in childhood which is due to a abnormal development of the inferior cava vein. We report a new case of retrocaval ureter in a 9 year-old girl who had consulted for macrohematuria and right flank pain. Preoperative intravenous urography and DTPA diuretic renogram suggested this entity. CT scan was no necessary for the diagnosis. We consider the diuretic renogram the best diagnostic method in the surgical decision of this disease.