Figure 1.

A 65-year-old woman with invasive ductal carcinoma of the right breast. On immunohistochemical study, ER and PR were negative. (A) ADC map shows ROI for measuring the mean ADC value. The calculated ADC value was 862 × 10^-6 mm2/s, which was lower than mean ADC value (994 × 10^-6 mm2/s). (B) Axial enhanced T1-weighted image after two minutes of contrast injection demonstrates a spiculated enhancing mass in the right breast. (C) FDG PET/CT image shows FDG uptake in the right breast with measured SUVmax as 7.3. ADC, apparent diffusion coefficient; ER, estrogen receptor: FDG PET/CT, 18 F-fluorodeoxygluxose positron emission tomography/computed tomography; PR, progesterone receptor, ROI, region of interest