Is he able to walk or is he bed bound? If able, I would seek a second opinion. I know that sometimes people do radiation to stop the bleeding. People have also done well with chemo. But since I'm not a professional and there are many variables, I think that if you can, seek multiple opinions from dr's that can review the entire case. There's also a nerve block procedure that can help with pain. To decide to go forward with surgery/ treatment or not is a personal decision. If it is a serious procedure, it might be best to just focus on making things comfortable.