Thoracic Aortic Aneurysm

A thoracic aortic aneurysm is a bulging, weakened area in the aorta. The aorta is the largest blood vessel in the body, delivering oxygenated blood from the heart to the rest of the body. "Thoracic" refers to the part of the aorta that runs through the chest. Over time, the weakened area in the aortic wall balloons and is at risk for bursting (rupture) or separating (dissection), which can cause life-threatening bleeding and potentially death.