my brother has stage 4 cancer of the esphegus (inside and out), lymph nodes, lung and brain cancer (the back of the head) occipital? He was to have been diagnosed in October. now, all of a sudden, he cannot walk without the aid of a walker. is there anything that can be done for him? he has had 10 radiation treatments and 2 treatments of ? thus far. do you think he might have a chance of living longer than 2 more months?