Known bilateral breast cancers (multifocal left breast invasive ductal carcinoma and right breast DCIS), evaluate response to therapy. There is scattered fibroglandular tissue in both breasts.Mild parenchymal enhancement is noted bilaterally.The known anterior malignancy in the left outer breast is only minimally enhancing on the late phases of the dynamic sequence compared to background. This measures 1.1 x 0.9 x 0.9 cm. This measured 2.1 x 2.0 x 2.2 cm on November 26, 2014. Along the medial margin of the previous location of the posterior mass there is a 1.0 cm area of non mass enhancement. The posterior mass is not otherwise enhancing above the level of background. It previously measured 2.9 x 2.0 x 2.5 cm.The right medial breast non-mass enhancement is faintly seen on the post contrast images, measuring 0.5 cm, previously 2.9 cm.  No abnormal lymph nodes are identified in either axillary region.A port-a-cath is present in the right superior chest wall.
Significant response to therapy in both breasts with residual tumor measurements given above. BIRADS: 6 - Known cancer.RECOMMENDATION: T - Take Appropriate Action - No Letter..