Glioma
This group comprises anaplastic astrocytomas and glioblastoma multiforme. Whereas the median overall survival of anaplastic (WHO grade III) gliomas is approximately 3 years, glioblastoma multiforme has a poor median overall survival of c. 15 months.
John McCain
McCain underwent a minimally invasive craniotomy at Mayo Clinic Hospital in Phoenix, Arizona, on July 14, 2017, in order to remove a blood clot above his left eye. His absence prompted Senate Majority Leader Mitch McConnell to delay a vote on the Better Care Reconciliation Act. Five days later, Mayo Clinic doctors announced that the laboratory results from the surgery confirmed the presence of a glioblastoma, which is a very aggressive brain tumor. Standard treatment options for this tumor include chemotherapy and radiation, although even with treatment, average survival time is approximately 14 months. McCain was a survivor of previous cancers, including melanoma.