31-year-old female with biopsy proven right breast fibroadenoma (4/21/15), underwent a research MRI that demonstrated 15-mm mass in the right breast 8 o'clock position and 9-mm mass in the left breast 10 o'clock position for which a second look ultrasound is recommended. A targeted bilateral breast ultrasound was performed. Right breast 8 o'clock position and there is an oval parallel oriented hypoechoic mass with lobulations, very similar in morphology to the previously biopsied fibroadenoma in the right breast 12 o'clock position. This mass measures 1.4 x 0.7 x 1.3 cm and most likely corresponds to the finding seen on MRI.In the left breast 10 o'clock position, there is an oval parallel oriented hypoechoic mass measuring 7 x 4 x 8 mm, most likely corresponding to the finding seen on MRI. Both these lesions most likely represent benign fibroadenomas.
Two benign morphology masses, in the right breast 8 o'clock position, and left breast 10 o'clock position, corresponding to the finding seen on MRI. Both these lesions most likely represent benign fibroadenomas. Follow-up right breast ultrasound and bilateral breast research MRI is recommended in 6 months to confirm stability.BIRADS: 3 - Probably benign finding.RECOMMENDATION: 3B - Followup at Short Interval (1-11 Months).