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Fig. 1 —Comparison of pathologic results of 2,420 sonographically guided
14-gauge core needle biopsies with gold standard. Gold standard results are
from surgical excision (616 cases), vacuum biopsy (i.e., sonographically
guided directed vacuum-assisted core biopsy) (195 cases), or long-term imaging
follow-up (353 cases). Note that remaining 1,256 lesions were confirmed
malignant after sonographically guided core needle biopsy. A = agreement
cells, U = underestimate cells, M = misses, ICA = invasive cancer, DCIS =
ductal carcinoma in situ, HR = high-risk lesion, B9 = benign lesion. (Adapted
from Burbank F, Parker SH. Methods for analysis of one-step breast biopsy
programs. Breast J 1998; 4:307-319
[18])
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