Fig. 10.
Early (A) and delayed (B) contrast-enhanced subtractions, T2w (C), and ADC map (D). Non-mass lesion in the left breast of a 25-year-old female with pain after stopping breast-feeding and unclear sonographic findings. The lesion shows no spiculations, a persistent enhancement curve type, and irregular margins, corresponding to a Kaiser score of 3 (Fig. 6). Note the internal small cystic correlate that suggests a benign lesion; ADC is unspecific (1.2*10-3 mm2/s). Together with the clinical symptoms, periductal mastitis must be suspected and it is safe to assign BI-RADS 2. Due to personal preferences, the patient requested a biopsy that revealed chronic periductal mastitis, B2