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FIGURE 6. Patient 3, a 27-y-old woman, presented with 1 enhancing mass in each breast. Axial (top), coronal (middle), and sagittal (bottom) slices are shown at level of a 2.2-cm mass detected in left breast (arrows) on both MRI and PET scans and found to be poorly differentiated DCIS at mastectomy. (A) Unregistered PET scan. (B) Original MRI scan. (C) Registered PET scan superimposed on original MRI scan. As can be seen in A on axial and coronal views, mass in right breast was correctly not seen on PET scan as determined also by mastectomy.
