Figure 9. Sagittal contrast-enhanced fat-saturated fast multiplanar spoiled gradient-echo MR image (25.3/3.6; flip angle, 30°) shows linear ductal enhancement (arrow) in a 44-year-old woman with invasive ductal carcinoma and DCIS who presented with calcifications at mammography. This case is a true-positive finding for the model branch point ductal enhancement, which tended to represent malignancy, regardless of the morphology of the ductal enhancement.