case_images: PMC10316177_01
case_images: Computed tomography scan (a-d) and magnetic resonance imaging (e: T1, f: T2, g: Short tau inversion recovery, and h: Gadolinium-enhanced) of the occipitocervical spine.
case_images: SNI-14-217-g001.jpg
case_images: PMC10316177_01_SNI-14-217-g001.jpg
case_images: F1
case_images: The angiogram showed the vertebral artery (VA) was encased bilaterally at the C2 level [Figures 1 and 2].
case_images: Vertebral artery subtraction angiogram (a: Right, b: Left), showing no anatomic variations.
case_images: SNI-14-217-g002.jpg
case_images: PMC10316177_01_SNI-14-217-g002.jpg
case_images: F2
case_images: The angiogram showed the vertebral artery (VA) was encased bilaterally at the C2 level [Figures 1 and 2].
case_images: Immediate postoperative lateral craniocervical X-ray (a) and computed tomography scan (b: Coronal, c: Right parasagittal, and d: Left parasagittal).
case_images: SNI-14-217-g003.jpg
case_images: PMC10316177_01_SNI-14-217-g003.jpg
case_images: F3
case_images: They were then gradually expanded under microscopic/fluoroscopic visualization until proper fixation (i.e., good bone-cage approximation) was achieved. The bilateral occiput to C4 rods was then permanently affixed and tightened [Figure 3].