In 2016 I was diagnosed with invasive ductal carcinoma. I had a lumpectomy and a thirty- day radiation. Based on my Mamaprint result chemotherapy was not needed. Took Tamoxifen for 8 years. But last April I was diagnosed with ILC after a core needle biopsy and a histopath on the same breast but located on a different quadrant. My oncologist recommended for me to take Ribociclib coupled with Letrozole instead of the regular chemo infusion but with mastectomy. She explained that the medicines have been very effective with her other patients with the same type of cancer- ER PR positive and HER2 negative- as I have.