Aneurysm of the thoracic aorta is less common than in the abdominal aorta, but it is clinically
important because of the risk of rupture and death. Cases are often found incidentally.
Indications for surgical or endovascular repair are based on aneurysm location and risk
factors for rupture such as aneurysm size, rate of growth, and associated conditions, while
medical management is also important. Surveillance with various imaging tests is critical
before and after intervention to guide treatment.