What is an abdominal aortic aneurysm?

Bulging Aorta. Ballooning of the abdominal portion of the aorta. The aorta is one of the major arteries that carry blood from your heart to the rest of the body. Sometimes patients with high blood pressure, cholesterol plaque formation can have weakened wall of this big artery, causing it to bulge (balloon out) like when one blow air into a balloon; if ruptured, instant death can occur.
Arterial dilatation. An aneurysm of any artery is traditionally thought of an enlargement of the size of the artery to two times the normal size. This occurs primarily as a degernative process as the infrarenal aorta has no intramural arteries to repair itself. Expansion occurs at 0.5-0.8 CM a year. AAA have to be followed serially. Stable AAA of the infrarenal aorta should be repaired at 5.5 cm.
.? AAA. They are a bulge in the wall of the aorta (your main artery running through your abdomen and ultimately supplying the blood to your legs) from a weakness. They can be thought of like a bulge in your garden hose.