"Lhermitte's sign" due to cervical exostosis.
D001859:Bone Neoplasms; D002493:Central Nervous System Diseases; D005096:Exostoses; D005097:Exostoses, Multiple Hereditary / Q000150:complications*; D006801:Humans; D015831:Osteochondroma
CENTRAL NERVOUS SYSTEM/diseases; EXOSTOSES, MULTIPLE/complications