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Is the frozen section examination for sentinel lymph node necessary in early breast cancer patients?

Authors
 Kwang Hyun Yoon  ;  Seho Park  ;  Jee Ye Kim  ;  Hyung Seok Park  ;  Seung Il Kim  ;  Young Up Cho  ;  Byeong-Woo Park 
Citation
 Annals of Surgical Treatment and Research, Vol.97(2) : 49-57, 2019 
Journal Title
 Annals of Surgical Treatment and Research 
ISSN
 2288-6575 
Issue Date
2019
Keywords
Breast neoplasms ; False negative reactions ; Frozen sections ; Sentinel lymph node biopsy
Abstract
Purpose: Sentinel lymph node (SLN) biopsy (SLNB) is widely performed for axillary staging in patients with breast cancer. Based on the results of frozen section examination (FSE), surgeons can decide to continue further axillary dissections. This study aimed to verify the accuracy of FSE for SLNs. Methods: We reviewed the records of 4,219 patients who underwent SLNB for primary invasive breast cancer between 2007 and 2016 at the Severance Hospital. We evaluated factors associated with the false-negative results of FSE for SLNs using the Generalized Estimating Equations model. Results: A total of 1,397 SLNs from 908 patients were confirmed to be metastatic. Seventy-one patients (1.7%) had confirmed pathologic N2 or N3 stage. Among metastatic SLNs, micrometastasis was found in 234 (16.8%). The overall accuracy of SLNB was 98.5%. The sensitivity and false-negative rate of FSE were 86.4% and 13.6%, respectively. Several clinicopathological factors, including the size of SLN metastases, suspicious preoperative axillary lymph nodes, and luminal B subtype, were associated with a higher rate of false-negative results. Conclusion: Most patients were not indicated for axillary lymph node dissection. Some patients may show transition in their permanent pathology due to the size of the metastatic node. However, the false-negative results of FSE for SLNs based on the size of the metastatic node did not change our practice. Therefore, intraoperative FSE for SLN should not be routinely performed for all breast cancer patients.
Files in This Item:
T201902881.pdf Download
DOI
10.4174/astr.2019.97.2.49
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Seung Il(김승일)
Kim, Jee Ye(김지예) ORCID logo https://orcid.org/0000-0003-3936-4410
Park, Byeong Woo(박병우) ORCID logo https://orcid.org/0000-0003-1353-2607
Park, Se Ho(박세호) ORCID logo https://orcid.org/0000-0001-8089-2755
Park, Hyung Seok(박형석) ORCID logo https://orcid.org/0000-0001-5322-6036
Cho, Young Up(조영업) ORCID logo https://orcid.org/0000-0003-2936-410X
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/171098
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