Hi, Thanks for writing in. Adenocarcinoma occurs in many places of the body. If it is the size of a fist then likely to be at stage 3 or 4. In advanced cancer there is a need for aggressive treatment with chemotherapy and radiation. It is not clear if surgery is possible at this stage. However more accurate treatment details are possible only after reviewing complete reports. Most people with a no other spread of adenocarcinoma might survive for more than 3 to 5 years. Let us hope that his cancer responds to treatment and that will regular follow up his disease might be under controlled and cured completely. He should be provided healthy nutrition and adequate pain relief should he be experiencing pain. Please do not worry.