I’m from Mexico and I just read your case online.
I have a good chance for you. It is a Mexican biochemist whodiscovered how to make neurons not die. He has helped many people, including cancer.
I do’nt know if brain cancer, but he manages to regenerate brain tissue.
Please, send your case, he personally attends difficult cases.
His name is Edgar Arroyo.
This is his company www.gialive.com
Good luck, and wholeheartedly I wish you recover. ;D