The immune system is quite complex,...are you getting second opinions by other doctors, and/or also looking into support from natural/holistic or alternative treatment methods? I hear the Cancer Treatment centers of America and other hospitals incorporate both conventional and alternative treatments. - using natural substances, herbs, vitamins, juice fasting, etc...other ways to natural attack cancer cells and BOOST your immune system. Sadly....the conventional route of just attacking cells with chemo or radiation is one of the most harmful. Although I went the conventional route and recovered, I think there are probably less harmful natural ways to beat these tumors, ...you may want to do more research, google, etc. for your particular condition.
Health, Wholeness and Healing