Abdominal aortic aneurysm in association with horseshoe kidney.

The authors report 3 cases of infra-renal abdominal aortic aneurysms resected in the presence of horseshoe kidney. In all these cases the diagnosis of the renal anomaly was done before the aneurysmectomy. In the first case, the diagnosis of horseshoe kidney was done by an aortography. In the second case by a previous operation to remove an urinary calculi. Three years after this surgery the diagnosis of abdominal aortic aneurysm was done when a computed tomography, an intravenous pyelography and an aortography, confirmed the diagnosis of horseshoe kidney. The third case come to our hospital in the fourth day after an exploratory laparotomy done in another hospital, when was observed the aneurysm and the horseshoe kidney. The second case had two anomalous arteries. One of them arose from the aneurysm to the renal isthmus and the other one from the common iliac to the isthmus. The three patients had an uncomplicated postoperative course. Only in the second case we had the necessity to reattache an anomalous artery directly to the graft.