An abdominal aortic aneurysm is a potentially fatal abnormal swelling (often balloon-like) of a segment of the body's largest artery, the aorta. The side wall of the artery bulges out rather than remaining straight.
The aorta carries oxygen-rich blood from the heart to smaller arteries throughout the body. An abdominal aneurysm occurs in the abdominal aorta, the part of the aorta between the bottom of the chest and the pelvis.
Normally, the aorta is about one inch (2.5 centimeters)...Read more