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| Heart and blood vessel problems - dissecting aneurysm [Go Back to Keywords List Page]  | dissecting aneurysm An aneurysm is an abnormal swelling in a weakened blood
vessel. A dissecting aneurysm occurs when blood gets
through a lengthwise tear between layers of the wall of an
artery (a blood vessel carrying blood from the heart to the
body). These layers then separate and swell, making a
balloon-shaped formation that causes severe pain. This
condition can be fatal if the artery bursts.
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