Figure 3.

A 59-year-old female with invasive ductal carcinoma (low-stroma group). A post-contrast, fat-suppressed, coronal T ₁ weighted image showed an oval-shaped mass with a circumscribed margin and heterogeneous enhancement (a). In the STIR image, the mass was high intensity, with a signal intensity of 552.1 (left side-panel) and the L/M ratio was 15.27 (b). In color-coded dynamic enhanced MRI (left side-panel), the mass predominantly showed a washout pattern (orange: washout pattern; green: plateau pattern). In scatter plotting graph (right side-panel), the mass also showed a predominantly washout pattern (washout: 55.52%: plateau: 35.23%; persistent: 12.25%) (c). In the ADC map, the ADC value of the mass was 0.961 × 10⁻³ mm² (d). In the photomicrograph, the mass was revealed to have a scant fibrous component (e). ADC, apparent diffusion coefficient; STIR, short-tau inversion-recovery.