case_images: PMC9272477_01
case_images: A & B - Axial MRI images, on the diffusion weighted imaging (DWI) and apparent
  diffusion coefficient (ADC) sequences show restricted diffusion involving mainly the
  left anterior cerebral artery (ACA) territory (white arrows). Also note presence of
  internal watershed acute infarcts. C - Axial FLAIR image showing corresponding
  hyperintensity of the involved left ACA territory. Also note internal watershed
  hyperintensity of varying ages, mostly acute. D - Post gadolinium vessel wall imaging
  (black-blood sequence) MRI image, in coronal section, showing enhancement and
  thickening of the wall of the left internal carotid artery (ICA) (white circle),
  compared to the right. Also note inhomogeneity of the luminal hypointensity,
  indicative of slow/stagnant blood flow. E - Post gadolinium vessel wall imaging
  (black-blood sequence) MRI image, in axial section, showing circumferential vessel
  wall thickening and enhancement of the left carotid artery, as well as luminal
  stenosis. F - Post gadolinium vessel wall imaging (black-blood sequence) MRI image, in
  axial section, showing enhancement of the left ACA A1 segment (white arrow). G - Post
  gadolinium vessel wall imaging (black-blood sequence) MRI image, in axial section,
  showing intraluminal hyperintensity of the distal left ACA (white circle), indicative
  of slow/stagnant flow. Note that the normal distal right ACA adjacent to it exhibits
  normal intraluminal hypointensity consistent with normal flow. H - Time of flight MRA
  image showing loss of signal intensity of the left internal carotid artery (ICA), with
  faint signal intensities of the left ACA and middle cerebral artery (MCA).
case_images: 10.1177_11795735221112589-fig1.jpg
case_images: PMC9272477_01_10.1177_11795735221112589-fig1.jpg
case_images: fig1-11795735221112589
case_images: Some segments of the involved vessels also showed luminal hyperintensity [Figure 1].