Uretero-arterial fistula due to a hypogastric aneurysm.

Uretero-arterial fistula is a rare condition that can result in life-threatening haematuria, which should be diagnosed and treated immediately. We report a case of uretero-arterial fistula due to a hypogastric aneurysm. The patient underwent an endovascular treatment of the hypogastric aneurysm associated with a percutaneous nephrostomy. Most fistulae are not identified on computed tomography (CT) and a high degree of suspicion is needed. Presence of unexplained haematuria with CT diagnosis of hypogastric aneurysm should raise suspicions of uretero-arterial fistula as a possible cause.