I’m almost 3 years from mine (June 2023). Had rapidly growing idc - initially measured at 1.2 and final was 1.7 in 5 weeks. While she went over the options, surgeon pretty much left the decision to me. Thinking back, I hope she would have countered that decision if she felt another was better (did say that if anything else showed up on the presurgical MRI, it would change things). I did choose the lumpectomy/radiation/ai therapy because it seemed like mastectomy was “overkill” for 1 small tumor. Ended up Oncotype positive so did end up with 4 rounds of chemo as well. Currently, I don’t regret this decision because margins and lymph nodes were clear. The only thing that would have changed with mastectomy is the radiation and I didn’t have many problems with that. So would I do the same again? Yes I would. However if another tumor shows up, will probably go for double mastectomy to try to eliminate future reoccurrence.