CT - CT carotid angiogram
Co-dominant vertebral arteries. The right vertebral artery is displaced posteriorly from the right C2 vertebral foramina and is compressed between the C2 fracture fragments. A small outpouching of contrast is anterior to the artery at this level in keeping with a traumatic pseudoaneurysm. No dissection flap identified. Normal distal opacification.
Normal opacification of the intracranial arteries. No evolving cerebellar or occipital hypoattenuation.
Right mandibular fractures (assessed on separate facial bone recons).
IMPRESSION
Displacement and compression of the right vertebral artery by the C2 fracture fragments with small associated anterior traumatic pseudoaneurysm. BCVI Biffl grade 3.