title: Evaluation of canalis basilaris medianus using cone-beam computed tomography.
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.
authors.affiliation: Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, CWRU School of Dental Medicine, Cleveland, OH, USA.
authors.forename: Ali Z
authors.initials: AZ
authors.lastname: Syed
authors.affiliation: Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, CWRU School of Dental Medicine, Cleveland, OH, USA.
authors.forename: Samir
authors.initials: S
authors.lastname: Zahedpasha
authors.affiliation: Department of Oral Diagnostic Sciences, VCU School of Dentistry, Richmond, VA, USA.
authors.forename: Sonali A
authors.initials: SA
authors.lastname: Rathore
authors.affiliation: Division of Radiology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA.
authors.forename: Mel
authors.initials: M
authors.lastname: Mupparapu
keywords: Anatomical Variation; CBM; Cone-Beam Computed Tomography; Skull Base