Japanese Journal of Clinical Oncology 30:65-67 (2000)
© 2000 Foundation for Promotion of Cancer Research
Ultrasound-guided Core Needle Biopsy for Breast Cancer: Preliminary Report
1Second Department of Surgery and 2Department of Radiology, Tokyo Medical and Dental University, School of Medicine, Tokyo, Japan
Background: Ultrasound-guided automated percutaneous core needle biopsy (US-CNB) for breast tumors has been introduced into clinical practice, but it has not yet been used routinely. We evaluated its usefulness, especially in terms of histological accuracy.
Methods: Thirty-one consecutive patients underwent mammography followed by breast biopsy with the automated core needle biopsy device.
Results: Mammography was highly suggestive of malignancy or suspicious abnormalities in 17 cases whose histological findings from US-CNB specimens were invasive ductal carcinoma without exception. The other 14 cases with benign or probably benign mammography findings showed no malignancy histologically in the US-CNB specimens. In cases of malignancy, the accuracy rates of histological findings for the specimens obtained by US-CNB were 94.1% in histological type, 100% in direct infiltration, 82.4% in lymphatic infiltration, 82.4% in venous infiltration, 94.1% in histological grading and 82.4% in intraductal spread.
Conclusion: US-CNB was useful for making reliable preoperative histopathological diagnosis and may substitute fine needle aspiration biopsy and surgical biopsy.
+ For reprints and all correspondence: Takayuki Osanai, Second Department of Surgery, Tokyo Medical and Dental University, 1–5–45, Yushima, Bunkyo-ku, Tokyo 113-8519, JapanAbbreviations: US-CNB, ultrasound-guided core needle biopsy; FNAC, fine needle aspiration cytology; BI-RADS, Breast Imaging Reporting and Data System; MMG, mammography