Chordoma.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D002817:Chordoma / Q000532:radiotherapy* / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D010166:Palliative Care; D011379:Prognosis; D011882:Radiotherapy, High-Energy; D013120:Spinal Cord Neoplasms / Q000532:radiotherapy* / Q000601:surgery