J Korean Soc Radiol.  2009 Jun;60(6):377-381. 10.3348/jksr.2009.60.6.377.

Infra-optic Course of Both Anterior Cerebral Arteries Associated with a Middle Cerebral Artery Aneurysm and an Aortic Coarctation

Affiliations
  • 1Department of Neurosurgery, St. Paul's Hospital, The Catholic University of Korea, College of Medicine, Seoul, Korea.
  • 2Department of Radiology, St. Paul's Hospital, The Catholic University of Korea, College of Medicine, Seoul, Korea. smc@catholic.ac.kr

Abstract

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 ophtha lmic 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.


MeSH Terms

Adult
Aneurysm, Ruptured
Anterior Cerebral Artery
Aorta
Aortic Coarctation
Aortography
Arteries
Carotid Artery, Internal
Female
Humans
Intracranial Aneurysm
Middle Cerebral Artery
Optic Chiasm
Optic Nerve
Tomography, X-Ray Computed
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