case_images: PMC10835197_01
case_images: Sagittal CTA images illustrating right MCA luminal irregularities (left), narrow caliber left MCA (middle), and narrow caliber left terminal ICA (right).. CTA = Computed Tomography Angiography; MCA = Middle Cerebral Artery; ICA = Internal Carotid Artery
case_images: cureus-0016-00000051578-i01.jpg
case_images: PMC10835197_01_cureus-0016-00000051578-i01.jpg
case_images: FIG1
case_images: CT angiogram (CTA) of the head and neck revealed bilateral narrowing of the internal carotid arteries (ICAs) with associated luminal irregularities (Figure 1).
case_images: Sagittal CTA image demonstrating right P3 segmental stenosis.
case_images: cureus-0016-00000051578-i02.jpg
case_images: PMC10835197_01_cureus-0016-00000051578-i02.jpg
case_images: FIG2
case_images: The right posterior cerebral artery showed a short segment of high-grade stenosis along the P3 segment (Figure 2).
case_images: Narrow caliber left vertebral artery (left) and narrow caliber right vertebral artery (right).
case_images: cureus-0016-00000051578-i03.jpg
case_images: PMC10835197_01_cureus-0016-00000051578-i03.jpg
case_images: FIG3
case_images: The bilateral vertebral arteries were noted to have a small caliber (Figure 3).
case_images: Axial CTA images showing numerous small caliber collateral vessels within the brain.. CTA = Computed Tomography Angiography
case_images: cureus-0016-00000051578-i04.jpg
case_images: PMC10835197_01_cureus-0016-00000051578-i04.jpg
case_images: FIG4
case_images: Numerous collaterals were noted to be scattered throughout the brain parenchyma (Figure 4).
case_images: T2 FLAIR demonstrating a large ischemic lesion in the left MCA and ACA territories (left). T2 PROPELLER redemonstrating the left frontoparietal and the left caudate head lesions.
case_images: cureus-0016-00000051578-i05.jpg
case_images: PMC10835197_01_cureus-0016-00000051578-i05.jpg
case_images: FIG5
case_images: Magnetic resonance imaging (MRI) of the brain was obtained for further evaluation of stroke (Figures 5, 6).
case_images: Axial DWI images revealing increased Brownian motion and illustrating ischemic changes in the left caudate head and splenium callosum (top left) and left frontal and parietal lobes (top right, bottom left, bottom right).. DWI = Diffusion-Weighted Imaging
case_images: cureus-0016-00000051578-i06.jpg
case_images: PMC10835197_01_cureus-0016-00000051578-i06.jpg
case_images: FIG6
case_images: Magnetic resonance imaging (MRI) of the brain was obtained for further evaluation of stroke (Figures 5, 6).
case_images: PMC10835197_02