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  • Title: Calcification retrieval at stereotactic, 11-gauge, directional, vacuum-assisted breast biopsy.
    Author: Liberman L, Smolkin JH, Dershaw DD, Morris EA, Abramson AF, Rosen PP.
    Journal: Radiology; 1998 Jul; 208(1):251-60. PubMed ID: 9646821.
    Abstract:
    PURPOSE: To determine the frequencies of calcification retrieval and histologic underestimates at stereotactic, 11-gauge, directional, vacuum-assisted breast biopsy. MATERIALS AND METHODS: Retrospective review of records revealed 112 calcific lesions in 80 women (aged 31-85 years) who underwent stereotactic, 11-gauge, directional, vacuum-assisted biopsy; a mean of 14 specimens per lesion were obtained. Calcification retrieval was defined as identification of calcifications on radiographs of specimens. Atypical ductal hyperplasia (ADH) underestimates were lesions that yielded ADH at stereotactic biopsy and carcinoma at surgery. Ductal carcinoma in situ (DCIS) underestimates were lesions that yielded DCIS at stereotactic biopsy and infiltrating carcinoma at surgery. Mammograms, stereotactic images, radiographs of specimens, and histologic findings were reviewed. RESULTS: Stereotactic, 11-gauge, directional, vacuum-assisted biopsy removed all calcifications in 51 (46%) lesions, some calcifications in 55 (49%) lesions, and no calcifications in six (5%) lesions. Failure to retrieve calcifications was significantly more likely in lesions 5 mm or smaller (12% [five of 43] vs 1% [one of 69], P = .03), in calcifications with amorphous morphology (21% [three of 14] vs 3% [three of 98], P < .03), or if the probe was fired outside the breast (12% [five of 40] vs 1% [one of 72], P = .02). Surgery revealed DCIS in one (10%) of 10 lesions that yielded ADH at stereotactic biopsy. Surgery revealed infiltrating carcinoma in one (5%) of 21 lesions that yielded DCIS at stereotactic biopsy. No underestimation occurred when all calcifications were removed. CONCLUSION: Stereotactic, 11-gauge, directional, vacuum-assisted biopsy resulted in successful calcification retrieval in 106 (95%) of 112 cases. Histologic underestimation was infrequent.
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