Non-HNG DCIS lesion on (a, b) DCE and (c, d) DW (b = 600 sec/mm2) MR images in 42-year-old woman. (a) T1-weighted fat-suppressed image shows 9-mm focal area (arrow) of non–mass-like enhancement. (b) The lesion demonstrates 178% peak initial enhancement with areas of delayed washout (red), persistent (blue), and plateau (green) kinetic features. (c) The lesion demonstrates high signal intensity (arrow), with a calculated CNR of 2.655. (d) On ADC map the lesion demonstrates low signal intensity (arrow), with a mean ADC value of 1.28 × 10−3 mm2/sec.