Figure 5b: DCIS and a benign nodule (fibroadenolipoma) in the left breast and a DCIS lesion in the contralateral right breast in a 46-year-old woman. (a) Mediolateral oblique conventional mammogram reveals a parenchymal distortion (white arrow) and a benign nodule (black arrow) in the upper outer quadrant of the left breast. Transverse contrast-enhanced T1-weighted GRE subtracted MR images (8.1/4; flip angle, 30°) (b) confirm the presence of the malignant lesion (arrow) in the upper outer quadrant of left breast and (c) reveal the presence of another lesion (arrow) in the contralateral right breast, with morphologic characteristics suggestive of malignancy (DCIS).