FIGURE 2.  Patient 1, a 25-y-old woman, presented with 1 mass in each breast. Axial (top), coronal (middle), and sagittal (bottom) slices are shown at level of 1-cm enhancing mass (arrows) detected only on MRI scan, evaluated as a probably benign finding and found to be benign after 17 mo of follow-up. (A) Unregistered PET scan. (B) Original MRI scan. (C) Registered PET scan superimposed on original MRI scan. No increased uptake was seen on PET scan.