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Fig. 2C. —True-positive sonographic findings and false-negative scintimammographic findings in 56-year-old woman with asymmetry on screening mammography. ^99mTc-sestamibi scintimammograms show no uptake in area of lesion, but do show uptake in axillary nodes bilaterally (arrows). Diagnosis was grade I infiltrating duct carcinoma with negative nodes.