How is vacuum-assisted core biopsy performed in the workup of breast lesions?

Updated: Aug 09, 2018
  • Author: Hemant Singhal, MD, MBBS, MBA, FRCS, FRCS(Edin), FRCSC; Chief Editor: Meda Raghavendra (Raghu), MD  more...
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With vacuum-assisted core biopsy devices (Mammotome; minimally invasive breast biopsy [MIBB]), an 11-gauge needle is positioned using ultrasonographic or mammographic guidance, and targeted breast tissue is drawn, cut, and saved in a collecting chamber. The procedure is performed under local anesthesia. These devices are relatively expensive, but they may be an alternative to open surgery for the therapeutic excision of benign lesions less than 15 mm or for additional tissue biopsy in patients with microcalcification or borderline breast lesions.

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