Cerebral Aneurysm - Definition

A cerebral aneurysm (pronounced an-yuh-RIH-zim) occurs at a weak spot in an artery that supplies blood to the brain. Once weakened, the artery wall bulges outward and fills with blood. This bulge is called an aneurysm. An aneurysm can burst, spilling blood into the brain. When this happens, permanent brain damage, disability, or death may occur.

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