Hi, and I'm very sorry to hear about your grandfather. But wait a sec, 65 is NOT OLD!!! Just had to say that. OK, now, temodar and radiation for about 6 weeks is the standard treatment, whether or not surgery was possible. Both of them cause some edema (swelling), but that can be managed by steroids. My son's tumor was so large to start with , and they were only able to remove a third of it, that we were concerned about edema and pressure which would potentially cause uncal herniation (at the brain/spinal cord connection) but it was managed by the Decadron and not a problem. Of course once those six weeks are over, it's a good idea to very slowly taper OFF the Decadron because it has its side-effects too, like muscle weakness.
I wonder in cases like your grandfather's if maybe Temodar and Avastin, or Carboplatin and Avastin would be the best first go. Avastin reduces swelling and can actually shrink them too. See if his doctor would consider this. (Whoever is going to the appointments with him should read up on all this stuff!)
I wish your family lots of time together.
Sarah
mother of Andy 27 dx gbm/pnet 1/09