Intracranial aneurysms are focal pathological dilatation of the arteries with a prevalence of 3.2%. Fusiform aneurysms are rare and mainly due to dissection or atherosclerosis. They may manifestas as stroke, cranial nerve palsies, brainstem compression and Sub-arachnoid hemorrhage. A diameter greater than 10 mm is a risk factor for rupture and warrants early intervention.
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