Ms. Li is a 23 year old female with a personal history of right breast lumpectomy in 2015 for a borderline phyllodes tumor/ADH/FEA and recent left breast biopsy for fibroadenoma with minute focus of ADH. She presents for MR imaging evaluation. There is extreme amount of fibroglandular tissue in both breasts. Moderate background parenchymal enhancement is noted bilaterally, limiting the sensitivity of this evaluation.There are a total of 9 lobulated enhancing masses identified bilaterally (left breast-6, right breast-3), some of which have increased T2 signal intensity and dark internal nonenhancing septations. Given their similar appearance and enhancement pattern, these all likely represent fibroepithelial lesions. For reference purposes, the biopsied fibroadenoma in the left superior breast measures approximately 1.3 x 1.7 x 1.1 cm (AP x ML x SI). Prior ultrasound measurements were 1.5 x 1.6 x 0.9 cm. Biopsy marker clip is seen within the central aspect of this fibroadenoma.No abnormal axillary lymph nodes are identified in either axillary region.
Multiple lobulated enhancing masses seen bilaterally, all of which have similar appearance and enhancement pattern. These all likely represent fibroepithelial lesions.A short-term 6 month MRI follow-up is recommended in order to ensure stability of all of these masses.BIRADS: 3 - Probably benign finding.RECOMMENDATION: 3B - Followup at Short Interval (1-11 Months).