@sirene I had a grade 3, stage 1 (1.5cm) tumor that was mixed ductal and lobular. I was first told, after biopsy, that it was HER2+, then after surgery, with 3 opinions, got several equivocals followed by negatives.

I had a low Oncotype score despite the grade 3 and relatively high ki67%. No radiation or chemo, 5 years of letrozole. Double mastectomy.

I also had lymphovascular invasion which is not included in staging or in Oncotye testing but I have read it is equivalent to one positive node.

I am ten years out knock on wood.

Breast Cancer Index folks told me they were changing their classification of risk. At 5.7 % I was "high risk" on the BCI, but this was the same as Oncotype's "low risk" at 6%!