Aortic aneurysm. Ballooning of an artery.
D017544:Aortic Aneurysm, Abdominal / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D019917:Blood Vessel Prosthesis Implantation / Q000379:methods*; D002404:Catheterization / Q000379:methods; D006801:Humans