title: Case 21-1979--aneurysmal dilatation of the aorta with aortic regurgitation.
mesh_terms: D001012:Aorta, Abdominal; D001013:Aorta, Thoracic; D001014:Aortic Aneurysm / Q000150:complications*; D001015:Aortic Arch Syndromes / Q000175:diagnosis*; D001022:Aortic Valve Insufficiency / Q000209:etiology*; D003937:Diagnosis, Differential; D013700:Giant Cell Arteritis / Q000175:diagnosis; D006801:Humans; D013625:Takayasu Arteritis / Q000175:diagnosis*