<unk>  commonly affects elderly population.<unk>  is defined based on transthoracic echocardiographic findings which include irregular leaflet thickening and focal valve thickening with associated increase in echogenicity.
Aortic sclerosis
Aortic aneurysm
Aortic stenosis
Aortic coarctation
Thoracic aortic aneurysm
Syphilitic aortitis
Annuloaortic ectasia
Takayasu's arteritis