Thoracic aortic aneurysm - Symptoms and causes - Mayo …
https://www.mayoclinic.org/diseases-conditions/thoracic-aortic-aneurysm/symptoms-causes/syc-20350188
Aneurysms can occur anywhere in the thoracic aorta, including near the heart, in the aortic arch and in the lower part of the thoracic aorta. Causes of thoracic aortic aneurysms may include: Hardening of the arteries (atherosclerosis). Plaque buildup on the artery walls causes the arteries to become less flexible. See more
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