38-year-old female with right breast cancer. MRI for further evaluation. There is extreme amount of fibroglandular tissue in both breasts. Marked parenchymal enhancement is noted bilaterally, a limitation to this study.There is non-mass enhancement within the left medial breast, extending 4.0 x 2.1 x 2.9 cm, including anteriorly to the retroareolar region. This projects to within 7 mm of the nipple. There is associated susceptibility artifact within the posterior aspect of the enhancement, compatible with clip from outside hospital biopsy. There is no evidence of chest wall invasion. There is no abnormal enhancement within the left breast.A single lymph node within the right axilla has equivocal cortical thickening, measuring 3mm. Lymph nodes in each axilla are otherwise normal.
1.Biopsy proven right medial breast non-mass enhancement, consistent with known cancer, spans 4 cm AP and projects to within 7 mm of the nipple. Given that the enhancement on this exam and extent of calcifications on mammography are similar, and if further tissue diagnosis for extent is needed, stereotactic biopsy could be performed. 2.Equivocal cortical thickening of a right axillary lymph node. 3.No MR evidence of malignancy within the left breast.BIRADS: 6 - Known cancer.RECOMMENDATION: T - Take Appropriate Action - No Letter.