Known left breast cancer on neoadjuvant chemotherapy. There is heterogeneous amount of fibroglandular tissue in both breasts.Mild parenchymal enhancement is noted bilaterally.Biopsy proven cancer in the left 2:00 far posterior depth is again noted with hydromark biopsy clip artifact. Residual faint enhancement near the skin measures 1.2 x 0.7 x 1.5 cm. This is significantly decreased from prior measurements of 2.5 x 2.6 x 3.1 cm. The biopsied left axillary lymph node is also again seen with hydromark artifact. At this point, this node measures about 9 mm, previously up to 1.5 cm. Multiple additional lymph nodes in the left axilla are also decreased in size, including in the subpectoral region, where the largest node now measures only up to 8 mm, previously a subpectoral node measured 2.1 cm.No abnormal enhancement is seen in the right breast. No abnormal axillary lymph nodes are identified in the right axillary region.
Significant response to therapy with measurements as above.BIRADS: 6 - Known cancer.RECOMMENDATION: T - Take Appropriate Action - No Letter.