Fig. 4

A 36-year-old female mother of two with a left breast lump and bilateral breast pain; IGM affecting both breasts. This patient breastfed both children; the last time was 2 years prior to presentation. a Bilateral mediolateral oblique mammograms show heterogeneously dense breast tissue but no abnormality in the left upper breast in the region of the palpable mass. b US image of the left upper outer breast shows a mixed echogenicity shadowing mass with indistinct margins (arrows), corresponding to a region of patient concern. c Axial T1 weighted post-contrast MIP with color kinetic analysis demonstrates bilateral heterogeneous enhancement, left greater than right, showing extent of involvement in both breasts (blue represents progressive enhancement and green plateau enhancement). d Sagittal diffusion-weighted (b = 800) image (left), corresponding ADC map (centre; 0.9 × 10⁻³ mm²/s), and time intensity enhancement curve (right) of the right breast demonstrates moderate restricted water diffusion with lower mean ADC values than what is observed in normal breast tissue