Malignant gliomas typically do not spread to other parts of the body . Friedman said the evidence for Avastin 's benefit against recurrent tumors is so compelling that he 's taken a `` leap of faith '' and includes the drug in the regimen for newly diagnosed glioblastoma patients whenever possible , even when they do n't qualify for clinical trials . The average life expectancy is from 15 to 18 months after surgery . Comment:
Malignant gliomas typically do not spread to other parts of the body . The average life expectancy is from 15 to 18 months after surgery . Comment: