title: Aplasia of the posterior arch of the atlas.
abstract: A case of aplasia of the posterior arch of the atlas with persistence of the posterior tubercle in a 14-year-old youth is presented. The pathogenesis and clinical implications of the condition are discussed.
authors.affiliation: Department of Biological Sciences, Faculty of Health Sciences University of Sydney Australia.
authors.forename: H D
authors.initials: HD
authors.lastname: Tran-Dinh
authors.forename: N W
authors.initials: NW
authors.lastname: Dorsch
authors.forename: Y S
authors.initials: YS
authors.lastname: Soo