Congratulations Karen, when my wife had her surgery we were not expecting to need radiation/chemo but had positive lymph nodes and a margin that was clear but closer than they like. Our chemo oncologist explained that they recommended chemo/radiation for any of 4 pathology findings. Of course, right now I only remember the positive lymph nodes and poor margins. I will try to find in my notes or someone else may know other reasons for recommending chemo and radiation.