My father has bowel cancer with possible spread. We have been told he is unsuitable for surgery and chemo due to him having copd. I keep reading about immunotherapy but when I ask his dr I get no joy, can anyone help in any way at all, this is particularly bitter because he was having yearly colonoscopies due to bowel cancer being hereditary and they told him they missed the cancer for 8 years, totally devastated and in need of help , any help much appreciated  ... View more