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.
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.