Non-traumatic atlanto-axial dislocation associated with nasopharyngeal infections (Grisel's disease).
D000328:Adult; D001368:Axis, Cervical Vertebra / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D001270:Cervical Atlas / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D004204:Joint Dislocations / Q000209:etiology; D008297:Male; D008875:Middle Aged; D009302:Nasopharyngeal Diseases / Q000150:complications*; D011859:Radiography; D014103:Torticollis / Q000209:etiology*