Intraoperative evaluation of sentinel lymph nodes in patients with breast cancer treated with systemic neoadjuvant therapy

被引:0
作者
Huerta-Rosario, Mariela [1 ,2 ]
Mir, Mariam [3 ]
Quispe-Vicuna, Carlos [2 ,4 ]
Hwang, Helena [3 ]
Sarode, Venetia [3 ]
Peng, Yan [3 ]
Fang, Yisheng [3 ]
Leitch, Marilyn [5 ]
Sahoo, Sunati [3 ]
机构
[1] Univ Senor Sipan, Fac Med, Chiclayo, Peru
[2] REDECS, Red Eficacia Clin & Sanit, Lima, Peru
[3] Univ Texas Southwestern Med Ctr, Dept Pathol, Dallas, TX 75390 USA
[4] Soc Cient San Fernando, Lima, Peru
[5] Univ Texas Southwestern Med Ctr, Dept Surg, Dallas, TX USA
关键词
Sentinel Lymph Node; Breast Neoplasms; Neoplasm Metastasis; FROZEN-SECTION ANALYSIS; TOUCH IMPRINT CYTOLOGY; CHEMOTHERAPY; BIOPSY;
D O I
10.1136/jcp-2023-208862
中图分类号
R36 [病理学];
学科分类号
100104 ;
摘要
AimsTouch preparation (TP) and frozen section (FS) are the two methods routinely used in the intraoperative evaluation (IOE) of sentinel lymph nodes (SLNs) to detect metastases in patients with breast cancer. Both methods are extremely sensitive and specific in the primary surgery (non-neoadjuvant systemic therapy (non-NST)) setting. Since NST introduces unique challenges in the IOE of SLNs, the aim was to determine the accuracy of TP and FS in the IOE of SLNs in the NST setting and compare the results with the non-NST setting and to examine factors that contribute to any differences. MethodsWe analysed 871 SLNs from 232 patients (615 SLNs from NST and 256 SLNs from non-NST settings) between 2016 through 2019. ResultsIn the NST group, TP alone (n=366) had a sensitivity of 45.7% and specificity of 99.7%; FS alone (n=90) had a sensitivity of 83.3% and specificity of 100%. When both TP and FS (n=135) were used, the sensitivity was 80.3% and the specificity was 98.6%.In the non-NST group, TP alone (n=193) had a sensitivity of 66.7% and specificity of 100%; FS alone (n=22) had a sensitivity and specificity of 100%; and combined TP and FS (n=34) had a sensitivity and specificity of 100% and 96%, respectively. ConclusionsEvaluating SLNs intraoperatively in the NST setting can be challenging secondary to therapy-related changes. In the NST setting, FS has higher sensitivity and specificity compared with TP for the IOE of SLNs and should be the preferred method.
引用
收藏
页码:544 / 550
页数:7
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