The ADH your mom had is estrogen driven. Did the doctors talk to her about taking any medicine to prevent cancer such as arimidex? That is a drug that can lower the risk of breast cancer associated with estrogen driven breast cancers. I was an oncology nurse for 10 years just retiring this past year to take care of myself and family. If she chooses not to do a second surgery again that is her chose but I would definitely encourage regular follow ups every 6 months. That is what I do with alternating mammograms and breast MRIs. It may never turn into anything but if it does the earlier it is found the better. I was 43 (now 45) when my ADH was found. I had a excisional biopsy and was started on arimidex to lower my breast cancer risk. I had to stop the medication due to the side affects. Estrogen hides in fat also so I have decided to get healthy and have lost 55lbs to hopefully lower my risk also and have cut out all processed food. Also don’t believe everything read on the internet. Yes read just don’t believe it all.