In 2017 when I was 70, my screening mammogram also showed architectural distortion also. For the 2 years before I had mammograms every 6 months because of calcification. I had further imaging and 2 sites were found. A biopsy determined one ductal and one lobular ER PR + Her2- in my left breast. I had a mastectomy on that one breast. Onco test was 18. So no chemo. I did take Letrozole for 5 years. No problems until my screening mammogram on my right breast this past April (2025). The report said focal asymmetry, but come back in a year. I contacted my oncologist and she ordered further imaging. That imaging indicated a small tumor 9mm. I had a biopsy. It came back triple negative invasive ductal carcinoma(TNBC). This is more aggressive. I had a mastectomy on the right breast June 18, clean margins and no lymph node involvement.The plan is to start chemo so since that is the standard treatment for this cancer. I do have a consult scheduled at Mayo in a couple of weeks. I am 78. I have been active walking 3 miles regularly and weight training 2x a week. I am not looking forward to this journey. But, I have a fantastic, supportive husband who is my rock. We will get through this.