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A 28-year-old man after a motor vehicle collision. An illustrative diagram (A) shows a grade V injury. CTA axial image (B) shows transection of the bilateral vertebral arteries with active contrast extravasation (white arrows), grade V injury. Also, note the large prevertebral neck hematoma (stars) displacing the orogastric tube (curved arrow) anteriorly. The patient also sustained C1 and C2 fractures (not shown).
