Comparison of stereotactic core breast biopsy and open surgical biopsy results at a tertiary care hospital in Pakistan
Imrana Masroor, Shaista Afzal, Gulnaz Shafqat, Yasir Jamil Khattak
Department of Radiology, Aga Khan University Hospital, Karachi, Pakistan
Background: The purpose of this study was to determine the yield of stereotactic core breast biopsy and its cost-saving potential.
Methods: This observational study was conducted at the Department of Radiology at Aga Khan Hospital in Karachi. All female patients (n = 84) undergoing stereotactic core breast biopsy under mammographic guidance from January 2005 to May 2010 were included. Stereotactic core biopsy was performed on a dedicated mammography unit employing a 14-gauge needle with an automated biopsy device. Ten patients with incomplete medical records were excluded. All breast biopsy results were either compared with surgical findings in cases of malignant histopathological findings or with follow-up needle localization in case of benign core biopsy findings.
Results: Fifteen of our 74 patients had malignant findings on stereotactic biopsy, confirmed on histopathology of the final surgical mastectomy specimen. The remaining 59 patients had benign results on histopathology; five patients had needle localization of the same area due to either suspicious mammographic findings or clinical suspicion of malignancy. All were proven to be histopathologically benign on open surgical biopsy. Fifty-four patients with benign results had follow-up mammograms, and the follow-up period was 18 months to 5 years. The sensitivity and specificity was 100%. The cost saving per patient was US$253.
Conclusion: Stereotactic core breast biopsy is a safe and cost-effective method for determining the nature of suspicious mammographic findings.
Keywords: stereotactic, breast biopsy, BI-RADS®, mammography
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