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Clip Migration after 11-gauge Vacuum-assisted Stereotactic Biopsy: Case Report¹

¹ From the Department of Radiology, Yale University School of Medicine, 333 Cedar St, PO Box 208042, New Haven, CT 06520. Received July 23, 2001; revision requested August 23; revision received September 14; accepted September 20. Address correspondence to L.E.P. (e-mail: philpotts@biomed.med.yale.edu).

A 68-year-old woman underwent stereotactic biopsy of a small cluster of calcifications. The postbiopsy mammograms showed the biopsy-marking clip to be located correctly at the biopsy site. Follow-up mammograms 1 year later showed that the clip migrated to another quadrant of the breast. Findings in this case demonstrate that at long-term follow-up a biopsy-marking clip may not be accurately marking the biopsy site.

© RSNA, 2002

Index terms: Breast, biopsy, 00.1267 • Breast radiography, 00.11 • Foreign bodies, 00.93

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