HI there, same deal with me. I was diagnosed with Stage II, my entire colon was removed because my colon cancer is genetic. I have HNPCC. My polyp that was cancerous was only 3.2 cm, but it ate through all four layers of my colon wall, which made it stage II, out of 16 lymph nodes, all were negative, and they took my appendix too, which was negative for cancer as well.
I have just started chemo, I got recommendations from three oncologists, one being a top guy on the east coast, and they all said the same thing, It's hard to say what would benefit me because I am not the typical cancer patient, being 29 and all, and since it was Stage II, and didn't go to the lymph nodes, they're could be some undectable cells around or they're couldn't. Eiether way, they recommended that I do 6 months of chemo-Oxaliplatin, Leucovorin, and 5FU. I get 4 hours on a Monday, then go home with a 46 hour pump, they want to do this for 12 cycles, that's 600 hours of chemo
which is a lot in my book, however, I am debating continuing it, because my first cycle was so hard, it made me really sick, however, I also battle with what if this comes back a year from now, and I could have done something to get through it more?
Personally, I think chemo is a personal decision, because utimately if you haven't done everything you can to prevent it and it comes back, how could you not feel quilty? Even though none of this is our fought. It sucks, it really sucks.
Good luck with your dad, btw, mine just got diagnosed with colon cancer too, he's also 71. He is going to have a ressection on June 17th and do chemo afterwards, he's an ox, nothing affects him, this is his 5th malignancy!