Multi arc and cyberknife are also to be considered RD, but lets not confuse the public with this.
Bottom line is that this is a normally slow growning benign tumour - it doesnt jump off to your lungs. Treatment is surgery and or radiotherapy. Get good advice from someone who treats a lot and then a second opinion. Take your time to make a decision.
Pin me and I will happily give you some reliable names
BW