title: [Pathological hypermobility in the articular region of the head - a case of os odontoideum].
mesh_terms: D000293:Adolescent; D001368:Axis, Cervical Vertebra / Q000002:abnormalities*; D001270:Cervical Atlas / Q000002:abnormalities; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D013122:Spinal Diseases / Q000175:diagnosis*
vernacular_title: Pathologische Hypermobilität im Kopfgelenkbereich - ein Fall von os Odontoideum.