of 26 patients with intramedullary spinal cord gliomas ( 9 astrocytomas , 5 glioblastomas , 12 ependymomas ) seen at the massachusetts general hospital from 1962 -- 1980 , 24 were irradiated ( 21 initially and 3 after post-surgical recurrence ) .
C0004114
astrocytomas
C0017636
glioblastomas