35 year old female with biopsy proven DCIS in the left breast. The DCIS was diagnosed in February 2015. The patient presents for re-assessment of the tumor. There is extreme amount of fibroglandular tissue in both breasts.There are scattered small cysts in both breasts.Mild parenchymal enhancement is noted bilaterally.In the left breast, there is a large non-mass enhancement, extending upper-lower outer and upper-inner quadrants, measuring 69 x 63 x 69 mm (AP x LR x CC). This non-mass enhancement presents predominantly in mid-posterior breast. In addition, there are two suspicious enhancing masses in the left retroareolar region, measuring 8 x 6 x 6 mm in total. No abnormal enhancement is seen in right breast. No abnormal lymph nodes are identified in either axillary region.
1. Large non-mass enhancement corresponding to DCIS, with small anterior masses in the left breast.2. No MR evidence of malignancy in right breast. 3. No abnormal lymph nodes in either axillary region.BIRADS: 6 - Known cancer.RECOMMENDATION: X - No Letter.