The Efficacy of Stereotactic Vacuum-assisted Biopsy and Needle Localization Vacuum-assisted Biopsy for Diagnosing Breast Microcalcification / 한국유방암학회지

ABSTRACT

PURPOSE: This study was conducted to evaluate the efficacy of 2 percutaneous breast biopsy techniques for diagnosing microcalcification stereotactic Vacuum-assisted biopsy (VAB) and needle localization VAB. METHODS: Between November 2002 and September 2007, 138 patients underwent percutaneous breast biopsy for microcalcification. Of these, 59 patients underwent needle localization VAB and 79 patients underwent stereotactic VAB with using a prone-table mammographic unit, respectively. Patients with focally clustered microcalcification underwent stereotactic VAB. Patients with diffuse or deep seated microcalcification and patients with small breast underwent needle localization VAB. We retrospectively reviewed the characteristics of the lesions and the percutaneous biopsy results for all the cases. RESULTS: Percutaneous biopsy was successful in 135 cases (97.8%). Of the 135 successfully performed cases, 34 cases (25.2%) were malignant and there were 4 (11.8%) underestimations. For the stereotactic VAB group, 13 of the successfully performed 76 cases (17.1%) were malignant and there were 2 (15.4%) underestimations. In needle localization VAB group, 21 (36.6%) of the 59 cases were malignant and there were 2 (9.5%) underestimations. There was no major complication in all the cases. CONCLUSION: With using stereotactic VAB and needle localization VAB, we can biopsy accurately and safely in almost all cases with leaving only minimal scar. So, percutaneous biopsy can be considered as a substitute for surgical biopsy for microcalcification of the breast.