Hi. My father died from a glioblastoma tumor, but he wasn't even around when they invented MRIs. If they had half the stuff they have today, back when he was alive, he might have survived. He had a CAT and a PET scan but his tumors came back all over his head. Except he died when i was 6 months old. So, please, hug your dad as much as u can even if he survives this, (which i'm very sure he will, because i've been researching this for about 2 months and the advances in treatment have soared). I also think he will survive because he must have such a loving family if his daughter would post such a personal thing like this on the internet. So my best wishes and prayers are with u and your Dad, Julie.