Hello there..... In general, younger patients tend to have better outcomes because their immune systems are stronger, but malignant gliomas are most often diagnosed in people who are middle-aged or older. Patients undergoing standard treatment for the most aggressive gliomas currently have an average length of survival of 15 months. It is important to remember, however, that some patients live considerably longer, and new experimental therapies are taking a proactive approach in fighting these tumors....