Purpose: To determine the effect of a selective core biopsy program on the yield at needle-localization biopsy (NLB) of nonpalpable lesions.
Materials And Methods: Two hundred consecutive core biopsy samples of the breast were evaluated in an ongoing consecutive series of 1,172 NLB samples.
Results: Before implementation of the core biopsy program, the yield at NLB improved from 21% at 100 cases to 35% just before the introduction of core biopsy. After implementation, the yield increased gradually to 55% at 200 cases. The yield in masses increased from 21% at 100 cases to 43% just before the initiation of the core biopsy program and then increased dramatically to 72% at 200 cases. The percentage of small lesions detected did not change with implementation: 88% of invasive cancers measured less than 1.5 cm and 60% measured less than 1 cm in the last 100 cases.
Conclusion: Appropriate selection of cases for core biopsy can more than double the yield of cancer in NLB samples without a decrease in the percentage of small cancers detected.
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| http://dx.doi.org/10.1148/radiology.195.3.7753985 | DOI Listing |
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