Figure 3.

A case of benign mass using FDP-MRI but not apparent under AB-MRI. A 55-year-old female underwent bilateral breast-conserving surgery for IDC. Post-operative screening MRI using FDP-MRI 2 years after left breast conserving surgery showed a 1 cm-size benign mass in the left mid-outer breast (arrow), especially well demarcated in the delayed image (pre-, first- and sixth post-contrast images) (a). Follow-up MRI using AB-MRI was performed after a year, and benign mass on previous MRI was not seen on AB-MRI (b). AB-MRI, abbreviated protocol of breast MRI; FDP-MRI, full diagnostic protocol-MRI; IDC, invasive ductal carcinoma.