title: Odontoid hypoplasia presenting as torticollis: a discussion of its significance.
abstract: Odontoid dysplasias are considered rare but are becoming increasingly recognized. Patients may have no symptoms, localized neck pain, or neurologic symptoms. Because patients with odontoid anomalies have the potential for craniovertebral instability, recognition of the entity is essential. A discussion of the axis, its development and anomalies follows.
authors.affiliation: Emergency Medicine Services, 121st General Hospital, Yongsan Army Garrison, Seoul, Republic of South Korea.
authors.forename: Robert R
authors.initials: RR
authors.lastname: Westermeyer
mesh_terms: D000328:Adult; D001268:Atlanto-Axial Joint / Q000000981:diagnostic imaging; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007593:Joint Instability / Q000517:prevention & control; D008279:Magnetic Resonance Imaging; D019547:Neck Pain / Q000175:diagnosis* / Q000209:etiology; D009809:Odontoid Process / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D010147:Pain Measurement; D011859:Radiography; D018570:Risk Assessment; D014103:Torticollis / Q000175:diagnosis* / Q000209:etiology