Hi
i had a lumpectomy and then the pathology came back that my calcifications were DCIS so I had to go back in for a mastectomy. I didn’t have much to take off :-) but again the pathology came back with tiny tumours everywhere. After 12 months I went and had my other side removed too and it was. one of the best things I’ve ever done (I haven’t had a reconstruction) I was 43 at diagnosis and I’m now 47.
Unfortunately no definitive answer on this for you. As my surgeon said - we can always take more if we need to (and we did).
Sending you all the best 🌸