Alice,
Treatment will depend on the size and number of tumors, if any. Generally Gamma Knife can treat tumors >3 cm. and usually only if fewer than 6.
Whole Brain Radiation is used if you have many tumors.
I do understand that
Cyberknife can treat larger tumors.
There are several practitioners of Gamma Knife in the Knoxville area:
Centers of Excellence.
You may wish to visit the CNS section of this website for re information:
CNS Tumors
Regards
Joe