Ms. Siegel is a 70-year-old woman presenting for MR-evaluation after recent diagnosis of left retroareolar malignancy that is mammographically and sonographically occult. There is scattered fibroglandular tissue in both breasts. Minimal parenchymal enhancement is noted bilaterally.LEFT BREAST: In the left retroareolar region, at the site of clinical concern, there is an irregular enhancing mass with surrounding non-mass enhancement identified. This entire enhancing area measures approximately 2.8 x 2.1 x 2.8 cm (AP x LR x CC) and extends into and completely involves the left nipple. There is no additional abnormal enhancement elsewhere in the left breast.RIGHT BREAST: There is no abnormal enhancement seen in the right breast. AXILLA: No abnormal lymph nodes are identified in either axillary region.
(1) Unifocal left retroareolar malignancy with complete involvement of the left nipple, measuring up to 2.8 cm.(2) No MR evidence of malignancy in the right breast.BIRADS: 6 - Known cancer.RECOMMENDATION: T - Take Appropriate Action - No Letter.