Aortic Aneurysm Surgery – Hopkins Medicine

The word “aneurysm’ means out-pouching or bulging of a portion of a blood vessel that can occur anywhere in the body. When an aneurysm occurs in the aorta, the largest blood vessel in the body, it is either a thoracic aneurysm, located near the heart, or an abdominal aneurysm, located in the descending portion of the aorta.

https://www.hopkinsmedicine.org/heart_vascular_institute/conditions_treatments/treatments/aortic_aneurysm_surgery.html