Ossification of the posterior longitudinal ligament of the cervical spine.
D000368:Aged; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009192:Myelography; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging*; D013122:Spinal Diseases / Q000000981:diagnostic imaging