I'm also worried about my brother, who is quite depressed. He was initially delighted to learn that the radiation and chemo destroyed the cancer, but the doctors still want to remove 1/3 of his rectum which will also stop him having the ability to control his bowels. It's standard procedure but they have found *no* cancer cells remaining and it seems extreme to me. I have suggested he get a second opinion. He's only 53 and having little to no bowel control may mean he can't work again. Also his favourite thing is to go to sporting events with his son. I don't know what options may be open to him but I feel like I personally would refuse the procedure. There are solid, scientific studies proving that certain things prevent and even reverse colon cancers.
Also, the doctors are rushing him to get it done because the surgeon is going away on vacation. Whereas initially they were going to watch the area for a while.