52 year old with a biopsy proven DCIS in the right breast presents for MRI evaluation. There is heterogeneous amount of fibroglandular tissue in both breasts.Mild parenchymal enhancement is noted bilaterally.There is a unifocal non-mass enhancement at posterior upper outer quadrant in the right breast (10:00 position), measuring 20 x 11 x 33 mm (AP x LR x CC) showing rapid uptake. Elsewhere, no abnormal enhancing lesion in the right breast.No abnormal enhancement is seen in left breast. No abnormal lymph nodes are identified in either axillary region.
1. Unifocal right breast lesion at posterior 10:00 position, consistent with biopsy proven DCIS.2. No MRI evidence for malignancy in the left breast. 3. No abnormal lymph nodes in either axillary region.BIRADS: 6 - Known cancer.RECOMMENDATION: X - No Letter.