A Case Report of Atlanto-occipital Assimilation

Authors

  • Ashwini S Shetty Department of Anatomy, Yenepoya Medical College, Yenepoya University, Mangaluru, Karnataka
  • Raghu Jetti Department of Basic Medical Science, College of Applied Medical Sciences, King Khalid University Abha
  • Srinivasa Rao Sirasanagandla Assistant Professor, Department of Anatomy, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat
  • Venumadhav Nelluri Department of Anatomy, Melaka Manipal Medical College, Manipal University, Manipal, Karnataka

DOI:

https://doi.org/10.3329/bjms.v17i1.35301

Keywords:

Atlas, Occipital bone, Assimilation, Jugular foramen, Septation, Clinical significance

Abstract

Background: Congenital fusion of atlas to the basiocciput is defined as atlanto-occipital assimilation/occipitalization of atlas.

Case report: During the norma basalis demonstration session of skull, we have noticed an assimilation/occipitalization of atlas vertebra. Atlas fusion may be complete or partial; assimilation of atlas is associated with neurovascular and skeletal anomalies.

Conclusion: Atlanto-occipital fusion may reduce the dimensions of foramen magnum thereby leads to brain stem compression causing the consequent neurological complications. Present case may pose difficulty in performing cisternal puncture. This anomaly has high clinical significance as it mimics the Arnold Chiari malformation.

Bangladesh Journal of Medical Science Vol.17(1) 2018 p.169-171

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Published

2018-01-11

How to Cite

Shetty, A. S., Jetti, R., Sirasanagandla, S. R., & Nelluri, V. (2018). A Case Report of Atlanto-occipital Assimilation. Bangladesh Journal of Medical Science, 17(1), 169–171. https://doi.org/10.3329/bjms.v17i1.35301

Issue

Section

Case Reports