Imaging Science in Dentistry

Korean Academy of Oral and Maxillofacial Radiology (대한영상치의학회)
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Evaluation of canalis basilaris medianus using cone-beam computed tomography

  • Syed, Ali Z. (Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, CWRU School of Dental Medicine) ;
  • Zahedpasha, Samir (Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, CWRU School of Dental Medicine) ;
  • Rathore, Sonali A. (Department of Oral Diagnostic Sciences, VCU School of Dentistry) ;
  • Mupparapu, Mel (Division of Radiology, University of Pennsylvania School of Dental Medicine)
  • Received : 2015.12.10
  • Accepted : 2016.02.24
  • Published : 2016.06.30
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Abstract

The aim of this report is to present two cases of canalis basilaris medianus as identified on cone-beam computed tomography (CBCT) in the base of the skull. The CBCT data sets were sent for radiographic consultation. In both cases, multi-planar views revealed an osseous defect in the base of the skull in the clivus region, the sagittal view showed a unilateral, well-defined, non-corticated, track-like low-attenuation osseous defect in the clivus. The appearance of the defect was highly reminiscent of a fracture of the clivus. The borders of osseous defect were smooth, and no other radiographic signs suggestive of osteolytic destructive processes were noted. Based on the overall radiographic examination, a radiographic impression of canalis basilaris medianus was made. Canalis basilaris medianus is a rare anatomical variant and is generally observed on the clivus. Due to its potential association with meningitis, it should be recognized and reported to avoid potential complications.

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References

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