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J Cerebrovasc Endovasc Neurosurg. 2014 Dec;16(4):368-373. English. Case Report. https://doi.org/10.7461/jcen.2014.16.4.368
Chua MH , Thomas AJ , Fusco MR , Ogilvy CS .
Harvard Medical School, Boston, MA, United States.
Department of Neurosurgery, Beth Israel Deaconess Medical Center, Brain Aneurysm Institute, Harvard Medical School, Boston, MA, United States. cogilvy@bidmc.harvard.edu
Abstract

Variations of the anterior cerebral artery-anterior communicating artery complex are commonly identified in aneurysm surgery. An infraoptic course of the anterior cerebral artery is exceedingly rare. Robison first described this anomaly from an anatomic dissection in 1959. A unilateral anomalous infraoptic anterior cerebral artery is more common than anomalies of bilateral infraoptic anterior cerebral arteries. We present the case of an unruptured aneurysm at the anterior communicating artery in a patient with bilateral infraoptic anterior cerebral arteries, identified by computed tomography angiography and verified during surgery. Implications for aneurysm formation and surgical treatment are discussed.

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