65 year old with biopsy proven DCIS at two sites of lower outer quadrant in the right breast, presents for staging MRI. There is also a biopsy proven fibroadenoma in the right breat. There is scattered fibroglandular tissue in both breasts.Moderate parenchymal enhancement is noted bilaterally.RIGHT BREAST: There is a clip artifact at anterior 9:00 position at the site of recent fibroadenoma biopsy, and there are two clip artifacts at posterior 8:00 position, each from DCIS biopsy, in the right breast. Distance between these two clips at posterior 8:00 position is 15 mm.There is 15 mm slowly enhancing area around the clip artifact at anterior 9:00 position, at the site of proven fibroadenoma. This enhancement is likely post-biopsy changes.At the site of proven DCIS, there are only small post-biopsy seromas (less than 5 mm), without abnormal enhancement.A normal intramammary lymph node is present in the right lower outer quadrant.Elsewhere, there is no abnormal enhancing lesions.LEFT BREAST:No abnormal enhancement is seen in left breast. AXILLAE:No abnormal lymph nodes are identified in either axillary region.
Biopsy proven DCIS in the right breast at lower outer quadrant (2 sites). Only minimal post-biopsy changes are seen at the site of proven malignancy in the right breast. No MR evidence of malignancy in the left breast or either axilla.BIRADS: 6 - Known cancer.RECOMMENDATION: X - No Letter.