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CTA cervical spine. Sagittal (a) and Coronal (b) views of right vertebral artery demonstrating lack of visualization of mid-cervical segment at C4–C5 levels. Sagittal (c) and Coronal (d) views of left vertebral artery demonstrating lack of visualization beyond the origin, as well as at C2–C4 and a small segment at C1–C2 level. Prominent vasospasm versus dissection. Fracture dislocation with distraction at C5–C6.
