Hi.
I'm very sorry to hear about your new diagnosis, but I can understand your frustration.
This sounds exactly like what's going on with my husband--AA, post surgery/radiation/Temodar--it's now infiltrating the Corpus Callosum. His appears to also be infiltrating a part of the right hemisphere.
He started his 1st infusion of Avastin 3 weeks aga. He goes for one treatment every two weeks. So far he's shown none of the negative side effects the docs(I hope) will tell you about--most serious one has to do with bleeding(since Avastin works to inhibit tumor's aility to acquire new blood vessels.) I've heard that Avastin can be a wonderful drug for addressing not only new growth, but any radiation necrosis/treatment effects you may have. My husband's docs said as long as it is showing itself effective and he has no side effects, he could stay on for at least a year--if not longer.
Hopefully your oncologist will discuss all the details with you.
Best,
kim