Comparison of Contrast-Enhanced Spectral Mammography and Contrast-Enhanced MRI in Screening Multifocal and Multicentric Lesions in Breast Cancer Patients

Figure 5

Imaging features of a 50-year-old woman with MMBC in the right breast. (a, b) CC position in the right breast. In CESM, the LE-MG and RSM imaging indicated asymmetric density shadow in the inner quadrant, with mild ductal enhancement (wide arrow). (c, d) MLO position in the right breast. In CESM, the LE-MG and RSM imaging indicated asymmetric density shadow in the lower quadrant, with mild ductal enhancement (wide arrow). The diagnosis was BI-RADS 4A. The pectoralis major muscle was not well displayed, which may not be diagnosed. (e) US indicated a hypoechoic mass with irregular edge (crosses), which was diagnosed as BI-RADS 4C. (f, g) T1WI image of CE-MRI fat compression in axial position showed the first mass with irregular and heterogeneous enhancement, which could be seen in the lower inner quadrant of the right breast (wide arrow). The second lesion showed non-mass and ductal enhancement around the mass (wide arrow). (h) The first mass was confirmed to be IDC after surgery, as shown in HE staining under a magnification of 20×. (i) The non-mass lesion was DCIS, as shown in HE staining under a magnification of 10×.