Evaluation of canalis basilaris medianus using cone-beam computed tomography
Syed Al Z., Zahedpasha Samir, Rathore Sonali A., Mupparapu Mel,
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( Syed Al Z. ) - CWRU School of Dental Medicine Department of Oral and Maxillofacial Medicine and Diagnostic Sciences
( Zahedpasha Samir ) - CWRU School of Dental Medicine Department of Oral and Maxillofacial Medicine and Diagnostic Sciences
( Rathore Sonali A. ) - VCU School of Dentistry Department of Oral Diagnostic Sciences
( Mupparapu Mel ) - University of Pennsylvania School of Dental Medicine Division of Radiology
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.
키워드
Cone-Beam Computed Tomography; Skull Base; Anatomical Variation; CBM
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