44 year old with biopsy proven right breast cancer with metastatic right axillary lymph node presents for I-SPY research MRI, pre-chemotherapy. There is heterogeneous amount of fibroglandular tissue in both breasts.Marked parenchymal enhancement is noted bilaterally.Biopsy proven index cancer is present as an enhancing mass at posterior 3 o'clock position in the right breast, measuring 19 x 25 x 25 mm (AP x LR x CC). Marker clip is identified within the mass. Biopsy proven satellite lesion is present as an enhancing mass at anterior 3 o'clock position in the right breast, measuring 9 x 9 x 7 mm, with internal marker clip. There are several small masses and non mass enhancements between these two masses. In addition, there is an enhancing mass measuring 6 mm at lateral retroareolar region of right breast. Overall measurement from the index mass to the proven satellite lesion is 55 mm, and to the most anterior lateral retroareolar mass is 79 mm.There is extensive fluid filling dilated ducts in the right outer breast. There is no distinct suspicious enhancement around these duct.In the right axilla, a biopsy proven metastatic lymph node is visualized at upper aspect with internal marker clip, measuring 11 mm in maximum diameter.No abnormal enhancement is seen in the left breast. No abnormal lymph nodes are identified in left axillary region.
1. Biopsy proven index cancer and satellite mass in the right inner breast with multiple additional masses and non mass enhancements.2. Biopsy proven right metastatic axillary lymph node.3. No MRI evidence for malignancy in the left breast or left axilla. BIRADS:6 - Known cancer. RECOMMENDATION:X - No Letter. 