Hello: I was diagnosed with DCIS, left breast in 2018 at age 63. There was too large an area of abnormal cells to safely do a lumpectomy, so at the recommendation of my surgeon, I had a single mastectomy with sentinel node biopsy, followed by a silicon implant six months later. Thankfully, DCIS was confirmed by the post-surgery pathology, and the nodes were clean. I don't regret the decision to have the sentinel node biopsy, during surgery. I gave some thought to a bilateral mastectomy, but I did not do that. So far, so good regarding lymphedema, although I am aware that it remains a risk. I did have genetic testing, since I lost a sister to breast cancer when she was 49. Those results were normal. Otherwise, I'd have definitely opted for bilateral surgery. The loss of my sister probably contributed to my willingness to have the sentinel node biopsy. There is so much to think about when facing all these decisions, and COVID is adding an extra layer of angst to your situations.