Ankylosing hyperostosis of the cervical spine.
D002574:Cervical Vertebrae; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D013128:Spinal Osteophytosis / Q000000981:diagnostic imaging*; D013167:Spondylitis, Ankylosing / Q000000981:diagnostic imaging