Citation, DOI, disclosures and article data
Citation:
Kearns C, Hacking C, Elliott T, et al. Accessory transverse foramen. Reference article, Radiopaedia.org (Accessed on 04 Oct 2024) https://doi.org/10.53347/rID-159944
Disclosures:
At the time the article was last revised Craig Hacking had the following disclosures:
- Philips Australia, Paid speaker at Philips Spectral CT events (ongoing)
These were assessed during peer review and were determined to
not be relevant to the changes that were made.
View Craig Hacking's current disclosures
An accessory transverse foramen, also known as a double transverse foramen, are a second, smaller foramen in the transverse process of typical cervical vertebrae 1. They are smaller than the transverse foramen, and may be unilateral or bilateral. Small studies have suggested a prevalence of 8-24% 1,2.
When present, the nearby transverse foramen tends to be narrower. It has been hypothesized that this increases the risk of vertebral artery occlusion 2, and could serve as a passage for a duplicated or fenestrated vertebral artery 1.
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1. Sangari S, Dossous P, Heineman T, Mtui E. Dimensions and Anatomical Variants of the Foramen Transversarium of Typical Cervical Vertebrae. Anatomy Research International. 2015;2015:1-5. doi:10.1155/2015/391823 - Pubmed
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2. Sharma A, Singh K, Gupta V, Stivastava S. Double Foramen Transversarium in Cervical Vertebra an Osteological Study. Journal of Anatomical Society of India. 2010;59(2):229-31. doi:10.1016/s0003-2778(10)80031-0
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