Abstract
We report two cases in which the vertebral artery (VA) entered the spinal canal via the intervertebral foramen at the C2–C3 disc level, an extremely rare variation regarded as a C3 segmental type of VA, that we diagnosed by magnetic resonance angiography. The C2 segmental type of VA, in which the VA enters the spinal canal via the C1–C2 intervertebral space, is relatively common. It is important to identify these variations before surgery of the craniovertebral junction or interventional procedures to prevent complications.
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We thank Rosalyn Uhrig, M.A. for editorial assistance in the preparation of this manuscript.
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Uchino, A., Saito, N., Uemiya, N. et al. Diagnosis of a C3 segmental type of vertebral artery by magnetic resonance angiography: report of two cases. Surg Radiol Anat 38, 873–876 (2016). https://doi.org/10.1007/s00276-016-1620-2
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DOI: https://doi.org/10.1007/s00276-016-1620-2