What would you think if a doctor diagnosed you with a brain tumor??

As a lot of people know tumors destroy the cells in the brain, they produce inflammation that give a lot of pain to the patient. The cause of brain tumors is unknown, there are different types of tumors that are classified on the location where it is or if is malignant or benign, for example  glioblastomas are the more aggresive type of tumors they causes headaches difficulty hearing, swallowing and other symptoms. Radiation Therapy is used in certain types of tumors. Do you think that technological advantages in medicine are enough to save your life in a case like this?