<unk>  is a non-traumatic subluxation of the atlanto-axial joint caused by inflammation of the adjacent tissues.
Grisel's syndrome
Weber's syndrome
Vogt-Koyanagi-Harada syndrome
Kearns–Sayre syndrome
Townes-Brocks syndrome
Faye-Petersen-Ward-Carey syndrome
Lucey-Driscoll syndrome
Bristowe's syndrome