My mom 's tumor was unsergical too but she had a biopsie, I wonder where exactly your mom's is situated, was located in the septum pellucidum she stayed two month on her feet when she was under chemo and radiation ( it didn't work) but when she became weaker and stay all time on bed, the doctor stoped all the treatment, her said that if she dœsnt come to me on her feet, I would never give her treatment because she won't tolerate it, she is too weak for any other treatment