Paravertebral ossification of the cervical spine.
D000844:Ankylosis / Q000000981:diagnostic imaging / Q000209:etiology*; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging; D006801:Humans; D008022:Ligaments; D008297:Male; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging / Q000209:etiology*; D011859:Radiography; D013124:Spinal Injuries / Q000150:complications