title: Duplication of the Posterior Cerebral Artery and the 'True Fetal' Variant.
abstract: We present a rare case of bilateral posterior cerebral artery variant anatomy seen in a patient presenting with acute ischemic stroke. An embryological explanation of the variant configuration is discussed along with demonstrative radiologic images and a display of the vascular territory supplied.
authors.affiliation: Department of Neurology, Boston Medical Center, Boston, Mass., USA ; Department of Radiology, Boston Medical Center, Boston, Mass., USA.
authors.forename: Hesham
authors.initials: H
authors.lastname: Masoud
authors.affiliation: Department of Neurology, Boston Medical Center, Boston, Mass., USA ; Department of Neurosurgery, Boston Medical Center, Boston, Mass., USA ; Department of Radiology, Boston Medical Center, Boston, Mass., USA.
authors.forename: Thanh N
authors.initials: TN
authors.lastname: Nguyen
authors.affiliation: Department of Radiology, Boston Medical Center, Boston, Mass., USA.
authors.forename: Joshua
authors.initials: J
authors.lastname: Thatcher
authors.affiliation: Department of Radiology, Boston Medical Center, Boston, Mass., USA.
authors.forename: Glenn
authors.initials: G
authors.lastname: Barest
authors.affiliation: Department of Radiology, Boston Medical Center, Boston, Mass., USA.
authors.forename: Alexander M
authors.initials: AM
authors.lastname: Norbash
keywords: 3D computed tomography angiography; Anatomy; Circle of Willis; Duplicate posterior cerebral artery; Fetal posterior cerebral artery; Magnetic resonance angiography; Posterior cerebral artery; Stroke; Vascular embryology