title: Unsuspected agenesis of the odontoid peg in a trauma patient.
authors.affiliation: Department of Orthopaedics, Merlin Park Regional Hospital, Galway, Ireland. kjm@indigo.ie
authors.forename: K J
authors.initials: KJ
authors.lastname: Mulhall
authors.forename: J P
authors.initials: JP
authors.lastname: McCabe
mesh_terms: D000063:Accidents, Traffic; D001268:Atlanto-Axial Joint / Q000293:injuries*; D006801:Humans; D004204:Joint Dislocations / Q000175:diagnosis* / Q000209:etiology; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009809:Odontoid Process / Q000002:abnormalities*