Hello Jzcareformon. Sorry to hear about your moms diagnoses. On one hand ADH really is nothing to be worried about but on the other which I am sure the doctor told you and her ADH when found on biopsy they usually suggest a lumpectomy because there is a small percentage that will also cancer hiding along with ADH that was not found on biopsy and thus the reason for taking it all out to make sure there is nothing else there hiding but, it is also your mothers decision and all you can do is give her all the i formation and let her make the decision .