Conversation: The conversation between human and AI assistant.
[|Human|] My husband has colon cancer and has had since 2010. He has been through chemo, surgery at stage 3. It is now stage 4 and he has now gone through a trial. He had quit that as he started bleeding. A beign mass was in his colon which did not show up on the CT scan. He has floaters throughout his omentum and now we are wondering what the next step is. We go back to the trial doctor next week.
[|AI|]  Treatment of stage 4 colon cancer consist of palliative chemotherapy along with targeted therapy. I would suggest u do colonoscopy and also do CT scan of whole abdomen. Blood for CEA test is also suggested. K RAS mutation test can be done in biopsy sample. If K RAS mutation is wild type then rituximab a targeted therapy along with chemotherapy is suggested. Adding targeted therapy to chemotherapy increases median overall survival in stage 4 colon cancer patient. Regards Chat Doctor.