RT Book, Section
A1 DeAngelis, Lisa M.
A1 Wen, Patrick Y.
A2 Longo, Dan L.
SR Print(0)
ID 1128357764
T1 PRIMARY AND METASTATIC TUMORS OF THE NERVOUS SYSTEM
T2 Harrison's Hematology and Oncology, 2e
YR 2013
FD 2013
PB McGraw-Hill Education
PP New York, NY
SN 9780071814904
LK hemonc.mhmedical.com/content.aspx?aid=1128357764
RD 2024/04/24
AB Primary  brain  tumors  are  diagnosed  in  approximately  52,000  people  each  year  in  the  United  States.  At  least  half  of  these  tumors  are  malignant  and  associated  with  a  high  mortality  rate.  Glial  tumors  account  for  about  60%  of  all  primary  brain  tumors,  and  80%  of  those  are  malignant  neoplasms.  Meningiomas  account  for  25%,  vestibular  schwannomas  10%,  and  central  nervous  system  (CNS)  lymphomas  about  2%.  Brain  metastases  are  three  times  more  common  than  all  primary  brain  tumors  combined  and  are  diagnosed  in  approximately  150,000  people  each  year.  Metastases  to  the  leptomeninges  and  epidural  space  of  the  spinal  cord  each  occur  in  approximately  3–5%  of  patients  with  systemic  cancer  and  are  also  a  major  cause  of  neurologic  disability  in  this  population.