Osseous anomalies of the craniovertebral junction.
D001268:Atlanto-Axial Joint / Q000002:abnormalities* / Q000000981:diagnostic imaging; D001269:Atlanto-Occipital Joint / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007593:Joint Instability / Q000151:congenital / Q000000981:diagnostic imaging / Q000628:therapy; D008023:Ligaments, Articular / Q000002:abnormalities; D008297:Male; D009809:Odontoid Process / Q000002:abnormalities / Q000000981:diagnostic imaging; D010985:Platybasia / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery; D011859:Radiography