title: Craniovertebral junction: normal anatomy with MR correlation.
abstract: The anatomy of the craniovertebral junction, although complex, may be well visualized by routine MR imaging. This essay discusses the anatomy of the complex articulations of the craniovertebral junction. Representative MR images and gross anatomic photographs are presented to illustrate the intricate ligamentous and articular anatomy. Knowledge of the normal anatomy of the occipitoatlantoaxial region is necessary in order to understand the common disorders that affect this area. The most common disorders are trauma and arthropathies, but also include congenital abnormalities and neoplasm. The resultant abnormal mechanics may lead to neurologic sequelae or pain.
authors.affiliation: Department of Radiology, Veterans Administration Medical Center, San Diego, CA.
authors.forename: M E
authors.initials: ME
authors.lastname: Schweitzer
authors.forename: J
authors.initials: J
authors.lastname: Hodler
authors.forename: V
authors.initials: V
authors.lastname: Cervilla
authors.forename: D
authors.initials: D
authors.lastname: Resnick
mesh_terms: D001268:Atlanto-Axial Joint / Q000033:anatomy & histology*; D001269:Atlanto-Occipital Joint / Q000033:anatomy & histology*; D002102:Cadaver; D002356:Cartilage / Q000033:anatomy & histology; D002574:Cervical Vertebrae / Q000033:anatomy & histology*; D006801:Humans; D008022:Ligaments / Q000033:anatomy & histology*; D008279:Magnetic Resonance Imaging; D009333:Neck / Q000033:anatomy & histology