Illustration of surgery for an abdominal aortic aneurysm with placement of an endoprosthesis in the aorta. A stent is also placed in the superior mesenteric artery, as well as a fenestra and covered stent in the left renal artery. The right renal artery, showing early bifurcation is ligatured and a bypass with the saphenous vein is set up between the right common iliac artery and the hepatic artery to reestablish blood flow in the right kidney.