I'm glad that you're getting a second opinion. Or more. I had a very plain vanilla EP+, HER2- 5mm tumor removed. Clean margins. Sentinel node biopsy negative. And my surgeon was the head of breast cancer surgery at a top-ranked facility. The oncologist is affiliated with the same institution. But I still got a second opinion. Which, happily,,agreed with my oncologist's recommendations.

It just gave me less chance of later regretting that there was a better treatment path that I didn't bother to look into.