Hi,
I am 50 years old, had stage 1 colorectal cancer last June 07. I've had radiation and chemo. I had a transanal excision, but microscopic cancer cells were still there, so I had my rectum removed with a temporary colostomy. I have had it reversed and am doing very well. The only problem is going to the bathroom alot, some days more than others.
If I were you, I would definitely get a 2nd opinion. I go to Medical University of South Carolina and my oncologist, surgeon, and radiation oncologist work very closely. I would ask for an oncologist and get his/her opinion on the chemo. It seems as though that would be an extra precaution for you, especially with your family history. Surely when you go for your resection, they will check lymph nodes then. I would just feel better knowing everything was done to prevent anything else.
You can't take a doctor's observations as truth. I had breast cancer 10 years ago and the biopspy "looked" like nothing suspicious. It was cancer and I had bilateral mastectomies w/reconstruction and chemo then also. The cancer that showed up last June is not related to my breast cancer.
There are too many good doctors out there to get a bad one.
Rosalyn