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What is a thoracic aortic aneurysm?

Thoracic aortic aneurysm, or TAA, is an abnormal widening of a part of the thoracic aorta. The thoracic aorta is the large artery (blood vessel) that comes from the heart and extends down the center of your chest. It contains blood with oxygen that goes to the rest of the body. TAA occurs when weak spots in the walls of the blood vessel are present. It commonly forms in the first part of the thoracic aorta but may happen in other parts of the blood vessel.

A thoracic aortic aneurysm is a ballooning out of a blood vessel in the chest region.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.