An<unk>  is a dilation of the aorta representing an underlying weakness in the wall of the aorta at that location. While the stretched vessel may occasionally cause discomfort, a greater concern is the risk of rupture which causes severe pain, massive internal hemorrhage which are often fatal.
Aortic aneurysm
Thoracic aortic aneurysm
Aortic sclerosis
Cerebral aneurysm
Aortic dissection
Coronary artery aneurysm
Iliac artery aneurysm
Mycotic aneurysm