Asymmetric atlas assimilation and potential danger to the brainstem: A case report

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3 Citations (Scopus)

Abstract

Atlas is the first cervical vertebra. It does not have a body like other cervical vertebrae. It has two transverse processes, each one of which bears a foramen transversarium. The vertebral artery passes through this foramen. It has two lateral masses which articulate with the occipital condyles to form atlanto-occipital joints. Rarely, the atlas vertebra fuses with the occipital bone. We observed a potentially dangerous incomplete occipitalization of the atlas vertebra during osteology demonstration classes. The fusion resulted in reducing the diameter of foramen magnum approximately by 25%. The knowledge of this variation may be of importance to orthopedic surgeons, neurosurgeons, radiologists and anthropologists. Copyright Internet Scientific Publications, LLC., 1996 to 2009.

Original languageEnglish
JournalInternet Journal of Biological Anthropology
Volume1
Issue number2
Publication statusPublished - 01-12-2008

All Science Journal Classification (ASJC) codes

  • Anthropology
  • Biochemistry, Genetics and Molecular Biology (miscellaneous)

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