case_images: PMC11805450_01
case_images: CT scan of the head showing normal findings. CT: computed tomography
case_images: cureus-0017-00000077147-i01.jpg
case_images: PMC11805450_01_cureus-0017-00000077147-i01.jpg
case_images: FIG1
case_images: A head CT scan without contrast (Figure 1) was negative for any acute intracranial pathology.
case_images: CTA of the head and neck. The blue arrowhead shows the loss of filling defect of the right PCA while the purple arrow indicates continued flow of contrast in the left PCA. CTA: computed tomography angiography; PCA: posterior cerebral artery
case_images: cureus-0017-00000077147-i02.jpg
case_images: PMC11805450_01_cureus-0017-00000077147-i02.jpg
case_images: FIG2
case_images: MRI axial view of the brain. The left image is the T2/FLAIR, and the right image is the DWI, showing the high signal intensity indicated by arrows. DWI: diffusion-weighted imaging; FLAIR: fluid-attenuated inversion recovery; MRI: magnetic resonance imaging
case_images: cureus-0017-00000077147-i03.jpg
case_images: PMC11805450_01_cureus-0017-00000077147-i03.jpg
case_images: FIG3
case_images: On day seven, a repeat brain MRI and MR angiography (MRA) revealed a new right medial temporal lobe infarct with occlusion of the right PCA at the level of the distal aspect of the P1 segment (Figures 3, 4).
case_images: MRA of the head with contrast. The image shows occlusion of the right posterior cerebral artery at the level of the distal aspect of the P1 segment (white arrow) with intact left posterior cerebral artery without any stenosis (orange arrow). MRA: magnetic resonance angiography
case_images: cureus-0017-00000077147-i04.jpg
case_images: PMC11805450_01_cureus-0017-00000077147-i04.jpg
case_images: FIG4
case_images: On day seven, a repeat brain MRI and MR angiography (MRA) revealed a new right medial temporal lobe infarct with occlusion of the right PCA at the level of the distal aspect of the P1 segment (Figures 3, 4).