hello dr I m 51 years old woman, during a routine check up in a mammography has found that there is a fibrotic mass and a nodule in my breast, dr refer me to Breast USG, still the mass diagnosed in my breast, but they told me there is no any problem with this masses, even though I have a family history of Brest cancer( my sister), I don t know there is need for any biopsy or not or how long I to be waiting for next exam, there is need for any other mammogram or USG is enough?