Figure 4b: IDC in the left breast and a fibroadenoma in the right breast in a 74-year-old woman. (a) Mediolateral oblique conventional mammogram reveals parenchymal distortion (arrow) in the upper inner quadrant of the left breast. (b, c) Transverse contrast-enhanced T1-weighted GRE subtracted MR images (8.1/4; flip angle, 30°) (b) confirm presence of a lesion (arrow) with suspicious morphologic and enhancement characteristics in the upper inner quadrant of the left breast and (c) show presence of another lesion (arrow) in the contralateral right breast, with homogeneous enhancement and type I signal intensity–time curve suggestive of a benign lesion.