KMID : 1103720090600060377
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Journal of the Korean Society of Radiology 2009 Volume.60 No. 6 p.377 ~ p.381
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Infra-optic Course of Both Anterior Cerebral Arteries Associated with a Middle Cerebral Artery Aneurysm and an Aortic Coarctation
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Cho Song-Mee
Ji Cheol Ahn Jae-Geun
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Abstract
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A ruptured aneurysm at the bifurcation of the left middle cerebral artery with an infra-optic course of the bilateral anterior cerebral arteries was found in a 28-year-old woman. Both abnormal anterior cerebral arteries arose from the ipsilateral internal carotid arteries, at the level of the origin of ophthalmic arteries, passed underneath the ipsilateral optic nerves and turned upward at the ventral portion of the optic chiasm. In addition, an aortic coarctation was found with the use of thoracic aortography. An infra-optic course of the bilateral anterior cerebral arteries is an extremely rare anomaly. An infra-optic course of the bilateral anterior cerebral arteries is frequently associated with cerebral aneurysms and possibly with a coarctation aorta. The clinical features, radiological findings and possible genesis of this anomaly are presented.
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KEYWORD
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Anterior cerebral artery, Intracranial aneurysm, Aortic carctation, Optic nerve, Tomography, X-Ray computed
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