title: Bilateral infraoptic origin of anterior cerebral arteries: a rare anomaly and its embryological and clinical significance.
abstract: We describe a case of bilateral infraoptic origin of the anterior cerebral arteries associated with an anterior communicating artery (ACOM) aneurysm. Anatomical variations of the anterior cerebral artery (ACA) are common; however, bilateral infraoptic course of the anterior cerebral artery is extremely rare. Since an infraoptic course of the ACA is associated with ACOM aneurysm formation, an understanding of the cerebrovascular anatomy and embryology is important for appropriate management of the aneurysm.
authors.affiliation: Department of Medical Imaging, Division of Neuro-imaging, University of Toronto, Toronto Western Hospital; Canada - karel.terbrugge@uhn.on.ca.
authors.forename: S
authors.initials: S
authors.lastname: Chakraborty
authors.forename: N F
authors.initials: NF
authors.lastname: Fanning
authors.forename: S K
authors.initials: SK
authors.lastname: Lee
authors.forename: K G
authors.initials: KG
authors.lastname: Terbrugge