71 year old with known left breast cancer on neoadjuvant chemotherapy. Evaluate response. There is scattered fibroglandular tissue in both breasts.Mild parenchymal enhancement is noted bilaterally.The known index cancer with an associated Hydromark biopsy clip is decreasing in size now measuring 14 x 11 x 17 mm in total, previously the mass measured 29 x 33 x 27 mm (AP x LR x CC), and overall measurement was 50 x 38 x 33 mm with non-mass enhancement. The two reference left axillary lymph nodes are also smaller. The biopsied node now measures 14 x 6 mm, previously 33 x 24 mm, and has normalized in morphology. The level 2 node now measures 13 x 6 mm, previously 28 x 13 mm.No additional suspicious or new enhancement is seen in either breast. No abnormal lymph nodes are identified in the right axillary region.A port-a-cath is noted in the right upper chest wall.
Significant response to therapy in the left breast and axilla with measurements given above.BIRADS: 6 - Known cancer.RECOMMENDATION: T - Take Appropriate Action - No Letter.