37 year old with known right breast cancer and metastatic right axillary lymph node presents for research MRI on the I-SPY protocol. There is heterogeneous amount of fibroglandular tissue in both breasts.Mild parenchymal enhancement is noted bilaterally.A faint 4 mm focus on enhancement is seen in the posterior depth of the right breast, 11 o'clock position. On the most recent comparison, the mass at this site measured 8 x 8 x 9 mm. No new enhancing breast lesion. The reference lymph node now measures only 6 mm in long axis, previously this had a maximum diameter of 9 mm. No abnormal enhancement is seen in left breast. No abnormal axillary lymph nodes are identified in left axillary region.
Near resolution of enhancement at the site of known cancer in the right breast.BIRADS: 6 - Known cancer.RECOMMENDATION: X - No Letter.