Figure 1

Luminal A breast cancer of right breast in 40-year-old woman. Prior to NAC, dynamic MR images obtained at 60 s (a), 240 s (b), and 300 s (c) after administration of gadolinium show a persistent enhancing mass with an irregular border. After the completion of NAC, residual tumor still shows an enhancement on dynamic MR image obtained at 60 s (d).