52-year-old with known left breast cancer for MRI to evaluate response to neoadjuvant chemotherapy. There is heterogeneous amount of fibroglandular tissue in both breasts.Mild parenchymal enhancement is noted bilaterally.Two known proven cancers are again demonstrated in the left breast, and both masses show significant volume reduction. The posterior mass measures 9 x 10 x 18 mm (previously: 22 x 18 x 26 mm). Artifact compatible with a biopsy clip is seen along the lateral aspect of the posterior mass. A small satellite lesion seen on the previous study anterior to this mass is no longer present. The anterior mass measures 12 x 14 x 11 mm (previously: 18 x 19 x 26 mm). Overall extent is 18 x 16 x 35 mm (previously 33 x 18 x 51 mm). No abnormal enhancement is seen in right breast. No abnormal lymph nodes are identified in either axillary region. Mild surgical changes are present in the left axilla.
Significant reduction in volume of left breast cancerBIRADS: 6 - Known cancer.RECOMMENDATION: X - No Letter.