I'm 40, I had my mammogram a few weeks ago and they called me and told me I needed to go back to get more images and a sonogram. Well the results are in and I'm schedule for a biopsy because the findings were: Persistent 4cm x 5cm ill-defined density retroaerolar of my right breast. The radiologist Impressionas are BI-RADS:Suspicious Abnormality with a Subdivision: 4B. Is cancer probable with these findings and a bi-rad 4 ?. Does anybody knows what is the % that it's cancer? I just want to be prepared for the biopsy findings. :(