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KMID : 1134120090120020100
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Journal of Breast Cancer
2009 Volume.12 No. 2 p.100 ~ p.105
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The Number of Removed Lymph Nodes for an Acceptable False Negative Rate in Sentinel Lymph Node Biopsy for Breast Cancer
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Koo Bon-Yong
Jung Sung-Ku
Eum Tae-Ik
Kang Hee-Jun
Kim Lee-Su
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Abstract
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Purpose :This study was performed to find the adequate number of removed lymph nodes to achieve an acceptable false-negative rate when performing sentinel lymph node biopsy for breast cancer.
Methods :A total of 179 sentinel node biopsies combined with conventional axillary lymph node dissection for breast cancer were performed between November 2003 and June 2007.
Results :The overall identification rate of sentinel lymph node and the false negative rate of the biopsy were 95.0% and 8.1%, respectively. Yet the false negative rate of the biopsy was lowered as the number of the removed nodes was increased. Especially, the false negative rate was 0% when more than 4 lymph nodes were removed.
Conclusion:We recommend that four lymph nodes should be removed to obtain accurate results in sentinel node biopsy for breast cancer.
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KEYWORD
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Breast cancer, False negative rate, Sentinel lymph node
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