Ms. O'Hara is a 52 year old female with known left breast cancer. She presents for MRI evaluation as part of the I-SPY2 protocol. There is scattered fibroglandular tissue in both breasts. Mild parenchymal enhancement is noted bilaterally.In the left upper inner breast, there is revisualization of the biopsy proven malignancy now measuring 2.4 x 1.9 x 2.2 cm, previously measuring 3.7 x 2.8 x 3.0 cm (AP x ML x SI). Susceptibility artifact from biopsy marker clip continues to be seen within this mass.There is no additional abnormal enhancement seen in the remainder of the left breast or the right breast. No abnormal lymph nodes are identified in either axillary or internal mammary region.
(1) Interval decrease in size of index malignancy of the left breast. (2) No MRI evidence for malignancy in the right breast. BIRADS: 6 - Known cancer.RECOMMENDATION: X - No Letter.