Female patient 36 years old presented with mass in right upper breast quadrant. a Ultrasound shows an oval hypoechoic mass, measuring 2.7 × 2 cm with angulated border and lobulation, parallel to skin surface showing posterior shadowing and no vascularity by colour Doppler. It was proven to be complex fibroadenoma by core biopsy. She came for follow up after 6 months. b The mass increased in size than the previous exam, it was irregular in shape, heterogeneous echogenicity, with speculated border showing vascularity by colour Doppler and not parallel to skin surface. By biopsy, it was proven to be malignant.