Dissecting aneurysm of the middle cerebral artery (M1-2 portion) with subarachnoid hemorrhage: a case report |
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Authors: | Ono Y Kawamura T Ito J Kanayama S |
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Institution: | Department of Neurosurgery, Hachinohe City Hospital, 1, Tamukai, Bishamondaira, Hachinohe, Aomori 031-8555, Japan. |
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Abstract: | We report a SAH case of a ruptured dissecting aneurysm of the middle cerebral artery following parietooccipital subcortical hemorrhage. A 68-year-old woman was admitted to our hospital, complaining of headache. On admission she was alert with left homonymous hemianopsia. A CT scan disclosed subcortical hemorrhage in the right parieto-occipital lobe. An angiogram revealed no abnormal vessels. Seven days after admission, she suddenly lapsed into unconsciousness with left hemiparesis. A CT scan demonstrated subarachnoid hemorrhage with a right sylvian hematoma. A second angiogram revealed fusiform dilatation of the M2 branches and aneurysmal dilatation at the M1-M2 bifurcation. Following conservative therapy, she died 21 days after admission. The relationship between subcortical hemorrhage and the subsequent subarachnoid hemorrhage was not certain. We discuss and review the treatment of a dissecting aneurysm of the middle cerebral artery. |
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