Hi, my step dad is 76, he was diagnosed last year with stage 4 cancer, tumor in the pancreas, in the lung, spots on the liver, and surgery at the same time for cancer in the hip, putting a steal rod in, followed by radiation. They were going to do radiation on the brain, after the hip, but decided not to on the brain. He has a non currible cancer, treatable, but fast spreading, he just found out today he has 3, 3cm tumors on the lung, 1 effecting his esaughagus, which is causing him to have trouble swallowing and breathing. He will recieve a double wammy of chemo on Tues. When would a Dr. stop chemo? My dad would never tell the drs if the chemo made him sick, thats why he is getting strong doses. He has been sick everyday in the last year.