Aortic Aneurysm - Types - Types
Abdominal aortic aneurysm
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Aortic Aneurysm - Types
Thoracic aortic aneurysm
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Aortic Aneurysm - Types
A thoracic aortic aneurysm is a less common aneurysm that occurs in the chest portion of the aorta, above the .
Why are aneurysms more common in the abdominal aorta than in the thoracic aorta?
Abdominal aortic aneurysms may be more common than thoracic aortic aneurysms because of the differences in the walls of the aorta in these two areas. The middle layer of the aortic wall contains muscle cells. This muscular layer of the wall is thicker in the thoracic aorta, which makes it stronger. Also, blood flows to this layer, which may contribute to its strength.