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Harvard Medical School
Examination of the biopsy sample usually requires several days. At centers where physicians are experienced in these biopsies, 65% of women who undergo this procedure are diagnosed with a benign condition and can resume having annual mammograms. Another 25% have a malignancy or a premalignant condition and proceed with treatment. For the remaining 10%, results are inconclusive; in most of these cases, the next step is a surgical biopsy.