Both my Mom and my sister within one year of one another contracted glial tumors.  Mom had a glioblastoma multiform and Karen a gliosarcoma.  The best thing you can do for anyone that gets a brain tumor is to get them to a brain tumor center.  I am not just saying that to cure the cancer but because they really know how to treat the cancer but also the pain.  It is a horrible, horrible experience.  Karen & Mom got their treatment at UCSF brain tumor center where I live and I spent many hours with them getting MRIs, etc.  They both died within 4 to 5 years.  To this day, I can not have an MRI without being put under.  It changes the patients life but, also the families.  I pray they make decisions that are the best for John!