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Prosthetic abdominal aorta. X-ray of a prosthetic blood vessel (white) that has been implanted to repair an aneurysm of the abdominal aorta and the iliac arteries. This view is from the side, with the spine at right and the front of the body at left. The aorta is the body's main artery, and it divides at centre into the iliac arteries that supply the legs. The prosthesis has encased the aneurysm, seen as the swelling at centre. An aneurysm is a weakening of the walls of a blood vessel, leading to swelling and rupture. In the aorta, such rupturing would be swiftly fatal. The prosthesis has strengthened the walls of the arteries.
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