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Aneurysms in the brain occur when there is a weakened area in the wall of a blood vessel. An aneurysm may be present from birth(congenital) or it may develop later in life.
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Whatever the cause may be, the inner wall of the blood vessel is abnormally thin and the pressure of the blood flow causes an aneurysm to form.Most aneurysms go unnoticed until they rupture. However, 10–15% of unruptured cerebral aneurysms a...
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