A firm, well circumscribed and mobile lesion of 2 cm is palpable in the retroareolar region of the left breast of a 34 years old patient. No axillary lymphadenopathy are observed. The lump is noticed for 10 years. The ultrasound images, performed 10 years ago, showed a round homogeneous hypoechoic mass of 1 cm, and at that time the diagnosis of a breast fibroadenoma was made. The patient no longer made ultrasounds or clinical examinations. She came to visit for bilateral mastalgia.