Ringmastr1: I am not sure of the extent of your metastasis but if you fall into the category of oligometastatic where it is limited in extent, and the number of metastatic lesions is small, you may want to talk to an RO about the MRIdian machine from Viewray. It’s the only radiation machine in existence that combines MRI and radiation into one unit. Margins are 2 mm instead of 4 mm or more for other types of radiation. Toxicity is a big issue regarding side effects and quality of life. I had five treatments, though in my case, my cancer was confined to the prostate but it may be worth looking into. My brothers recent prostate cancer had metastasized and was treated with the machine at NY Presbyterian/Cornell Weill in NYC. They also gave him hormone therapy. Let me know if you need the RO dr’s name. Here is the link to locations of the MRIdian machine: https://viewray.com/mridian-treatment-centers/