I've had not exactly that situation but want to tell you that the fact that you're being followed so closely is terrific. Between the ultrasound, mri and mammograms and the fact that a breast surgeon (already very savvy) discussed your imaging with a tumor board (a bunch of experts collaborating) and they are just monitoring is very reassuring. So, dimpling occurs when cancer is involved because it grows over a tumor. you've had 4 children. Breast fed any? Could any of this have to do with that? I really don't know but a question for your doctor. You can have dimpling for benign situations of the breast. Remember that. For now, I'd keep up on top of this working with your doctors. That way, if there are ANY changes, you catch it early. i know as a mom myself . . . we don't have time for cancer!! :))) hugs