36 year old with known right breast cancer and metastatic right axillary lymph node presents for research MRI of I-SPY protocol (pre-chemotherapy). There is heterogeneous amount of fibroglandular tissue in both breasts.Marked parenchymal enhancement is noted bilaterally.A known cancer is demonstrated as an irregularly shaped enhancing mass at posterior 11 o'clock position, measuring 24 x 26 x 23 mm (AP x LR x CC). An artifact from marker clip is present at anterior-inferior border of the mass.No other abnormal enhancing lesions are present in the right breast.An enlarges lymph node is present in the right axilla, with maximum diameter of 17 mm, consistent with a metastatic lymph node. An artifact from marker clip is seen 6 mm lateral from the lymph node. No abnormal enhancement is seen in left breast. No abnormal axillary lymph nodes are identified in left axillary region.
1. Unifocal cancer in the right breast with known metastatic right axillary lymph node.2. No MR evidence for malignancy in the left breastBIRADS: 6 - Known cancer.RECOMMENDATION: X - No Letter.