title: [Odontoid bone. Apropos of a case].
abstract: Reporting a clinical observation, the authors emphasize upon the extreme scarceness of this variety of so called "congenital" pseudarthrosis of the odontoid process. The congenital origin, due to a lack of fusion, or the acquired one by avascular necrosis following a trauma is explained. The diagnosis may be clinical, consisting either on a vertebral syndrome occurring in childhood, or on a neurological syndrome in the adult age. It is mainly radiological : A scanner investigation is presented here. Owing to the potential neurological severity of the disease, the posterior fusion has to be recommanded.
mesh_terms: D002574:Cervical Vertebrae / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D002648:Child; D006801:Humans; D008297:Male; D011542:Pseudarthrosis / Q000151:congenital* / Q000601:surgery / Q000628:therapy; D014057:Tomography, X-Ray Computed
vernacular_title: L'os odontoïde. A propos d'une observation.