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What is an aneurysm?

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An aneurysm is a bulge in the wall of an artery. It happens when the pressure of blood passing through has forced a weakened part of the artery to balloon outward.

Aneurysms can happen in any blood vessel, but they usually form in the belly or chest portions of your aorta -- the main blood vessel that carries blood from your heart. Or they can form in the arteries that nourish your brain.

Aneurysms there are serious, while those in other areas, such as your leg, are often less hazardous.

From: What Is an Aneurysm? WebMD Medical Reference

SOURCE: 

American Heart Association.

Reviewed by James Beckerman on May 6, 2019

SOURCE: 

American Heart Association.

Reviewed by James Beckerman on May 6, 2019

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