Abstract
We report a rare case of an 88-year-old woman who had an abdominal aortic aneurysm (AAA) with left-side inferior vena cava (IVC). The preoperative enhanced CT revealed that the maximum diameter of the AAA was 58 mm and the left-side IVC crossed at the aneurysmal neck. At operation, a midline incision was made and the left-side IVC was dissected widely from the aneurysmal neck. The operative field was exposed by drawing the intestines in superior and inferior directions. After the retroperitoneum was opened at 2 places, the left upper site and the right lower site of the mesenteric root, bifurcated graft replacement was performed by retracting the IVC. The postoperative course was uneventful. Good exposure of the aneurysm was obtained through this approach and was useful for repair of the AAA.