69 year old with known left invasive breast cancer presents for pre-treatment MRI. There is heterogeneous amount of fibroglandular tissue in both breasts.Mild parenchymal enhancement is noted bilaterally.Segmental non mass enhancement is present at upper inner quadrant in the left breast, measuring 105 x 36 x 40 mm (AP x LR x CC), extending from near pectoralis muscle to the nipple, which is retracted. A marker clip is identified at posterior medial part of this non mass enhancement.An enhancing focus is seen at 2:00 position in the left breast, likely a normal intramammary lymph node.No abnormal enhancement is seen in right breast. No abnormal lymph nodes are identified in either axillary region.
1. Segmental non mass enhancement in the left upper inner quadrant, corresponding to the proven malignancy.2. No abnormal enhancement in right breast3. No abnormal lymph nodes in either axillary regionBIRADS: 6 - Known cancer.RECOMMENDATION: X - No Letter.