A case of abdominal aortic aneurysm associated with L-shaped crossed-fused renal ectopia.

Genitourinary anomalies are a tremendous challenge for the vascular surgeon, especially when dealing with an abdominal aortic aneurysm. We report a case of crossed-fused renal ectopia, a rare anomaly accompanied by abdominal aortic aneurysm. Bilateral renal arteries and one aberrant artery from the right common iliac artery supply the ectopic kidney. Because renal ischemia during aortic reconstruction can be a serious problem, we reconstructed a temporary right axillo-left renal artery bypass graft first, then reimplanted the aberrant renal artery. When choosing the procedure for renal preservation, preoperative multidetector-row computed tomography was useful to plan the operative strategy.