If pre-op Anastrozole shrink tumor completely then what?

My sister in law had chemotherapy before surgery for IDC. It was essentially NED after chemo. But she went ahead and had a lumpectomy to remove the tissue at ground zero as a precaution. My brother is a surgeon, burn specialty, and was very involved with her doctors and decisions. She then did 5 years tamoxifen, she was postmenopausal. That was 2016, no recurrences.

@triciaot appreciate your sharing about your SIL. Looking at Dr. Google, I was able to find some info that seems to show that even with comple I’d never heard of giving estrogen blockers prior to surgery either (neoadjuvant therapy) At first the surgeon was explaining how she was going to put in a port & then I’d have to take chemo to make my tumor smaller before she would operate. When I told her about my husband & how I needed some time to arrange for help with him, she said I could give this a try for 3 months. And that hopefully it would keep the tumor from growing or possibly, best case scenario, maybe even get smaller. I appreciate your well wishes & hope the best for you too te response & no tumor on imaging, then surgery is still done to make sure there’s no microscopic evidence of cancer. That’s the reason they put in the surgical clips when I had my core biopsy & axillary node aspirations