I do not have any experience with your type of tumor however it does take time for cyberknife to shrink tumors. I think it's a good sign that your tumor stayed the same. I can't figure out why your doctor changed the MRIs to a year instead of every 6 months though. I would think s/he'd want to keep an eye on it to make sure it would not grow larger. Is there a possibility that your could have cyberknife again? I do know that any cancer loves sugar and if you cut that out of your diet, it might help. Here is a link for other ideas which may be helpful. https://thetruthaboutcancer.com/rebuild-health-cancer-surgery/ Best of luck and many blessing to you.