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A D V E R T I S E M E N T
A D V E R T I S E M E N T
Another cause of intracranial catastrophe is bleeding into the subarachnoid space, usually due to rupture of a weakened, dilated (aneurysmal) vessel. These "berry" aneurysms are rare but highly dangerous.
A D V E R T I S E M E N T
Berry aneurysms usually occur at branch points of vessels where turbulent flow weakens the arterial wall, such as the basilar bifurcation shown here.
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A D V E R T I S E M E N T
Rupture of the aneurysm allows free flow of blood into the subarachnoid space.
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This page was last modified on 7/20/1999.
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