my mom was just diagnose with a brain tumor 5cm size of a golf ball according to the nurse. She has been having severe headaches, numbness on her hands not all the time and her eyesight . They did an MRI that s how they diagnose the tumor. We are very scare going online doing research is not helping just making a worst. According to the doctor looking at the MRI- CT Scan it seems that is growing aggressively and also he thinks its been there for 6 months. Im a little confuse according what I have read he is not able to tell when it started until they do the biobsy right?