I was diagnosed with breast cancer 14 years ago (microcapillary intraductal carcinoma in association with a mucocele like lesion). I had a lumpectomy and radiation. This week I was diagnosed (in the same breast) with "infiltrating ductal carcinoma. Nottingham histologic grade 3. Modified black's nuclear grade 3. Carcinoma in situ component present, comedo type, modified black's nuclear grade 3. No lymphatic/vascular invasion identified."
Would this be considered a new cancer or a recurrence? What is the prognosis for this type and grade of cancer given that it's in the same breast and I am no longer eligible for radiation therapy. I'm most concerned about saving my life - not my breast. However, I'd like to learn as much as I can to determine whether mastectomy is the preferable option over another lumpectomy, how much time I would have if I opted NOT to have chemo and just what lifespan I might expect with or without chemo. I'm hoping for a very candid reply. Thank you.