Can cancer return after you've had a unilateral mastectomy; chemo; Herception, inhibitor?

The reality is a new primary breast cancer can develop in the other breast and it can be a completely different pathology than your first primary breast cancer. This is however very rare. So have the conversation. Follow through with appointments. Micro-calcifications can be nothing. I had a number through my breasts that were removed and that's all they were. Yes...we will always fear recurrence or a new bc. But communication with your team is the best way to deal with it.