Common causes of thoracic aortic aneurysm
| Idiopathic |
| Bicuspid aortic valve |
| Genetic syndromes Marfan syndrome Loeys-Dietz syndrome Ehlers-Danlos syndrome Familial thoracic aortic aneurysm and dissection Autosomal dominant polycystic kidney disease Turner syndrome |
| Inflammatory vasculitis Takayasu arteritis Giant cell arteritis Behçet arteritis Ankylosing spondylitis |
| Other Atherosclerosis Syphilis Previous dissection Infectious aortitis Trauma |
| Risk factors Hypertension Smoking Advanced age |