Figure 3b. (a) Sagittal T2-weighted (5,000/120) and (b) sagittal contrast-enhanced fast multiplanar spoiled gradient-echo fat-saturated (9.3/2.2; flip angle, 35°) MR images show a smooth nonenhancing mass (arrow) in a 68-year-old woman with a mammographically visible mass that was colloid carcinoma. This case is a false-negative finding for the model terminal node smooth focal masses.