Use of Memorial Sloan Kettering Cancer Center nomogram to guide intraoperative sentinel lymph node frozen sections in patients with early breast cancer

559 Background: Early breast cancer (cT1-2N0) with one or two sentinel lymph node (SLN) involved may avoid axillary lymph node dissection (ALND) if follow by radiotherapy supported by Z0011 and AMAROS trials. However, only less than one-third of those patients have positive non-sentinel lymph node (nSLN) and can truly benefit from radiotherapy or ALND in those two trials. It is necessary to identify the risk of nSLN metastasis before local treatment decision. We previously developed a predictive model for nSLN involvement using circulating CK19 mRNA level combined with contrast-enhanced ultrasound (CEUS) score (ASCO2017 poster 239, NCT02992067) in a training set. To evaluate the predict effect of this model, we designed a further study using the model prospectively in a validation set (NCT03280134). Methods: We identified early breast cancer cases in Zhejiang Cancer Hospital from July 2017 to June 2018. The level of circulating CK19 mRNA tested by qRT-PCR and CEUS scores were collected before surgery in each case. Patients with 1~2 SLN involved were enrolled and continued for ALND. The estimated percentage of nSLN-involved were calculated both by our model formula and the Memorial Sloan-Kettering Cancer Center (MSKCC) nomogram. The predictive accuracy and false negative rates (FNR) were evaluated and the area under curve (AUC) was compared between two predictive models. Results: Totally, 235 patients diagnosed as early breast cancer with 1~2 SLN involved were enrolled and 35.36% of them were nSLN involved after ALND. The total accuracy and FNR by our model for nSLN-involved prediction was 94.89% and 6.02%, respectively. The AUC was 0.952 (95%CI, 0.922~0.982), significantly higher than that in MSKCC model 0.880 (95%CI, 0.833~0.927). Furthermore, only CK19 mRNA level (HR = 40.091, 95%CI, 13.663~117.635) and CEUS score (HR = 2.009, 95%CI 1.158~3.485) are significantly related to nSLN involvement in both univariate and multivariate analysis, adjusted by age, menopause statue, tumor size, histological grade, estrogen receptor, progesterone receptor and human epidermalgrowth factor receptor-2 expression. Conclusions: Our model using CK19 mRNA and CEUS score showed potential predictive value of nSLN before surgery in early breast cancer patients. Further validation in larger multicenter cohort is warranted before changing clinical practice.

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Early Breast Cancer - Less Axillary Surgery?

Swiss Surgery ◽

10.1024/1023-9332.6.3.116 ◽

2000 ◽

Vol 6 (3) ◽

pp. 116-120 ◽

Cited By ~ 3

Author(s):

Gambazzi ◽

Zuber ◽

Oertli ◽

Marti ◽

Kocher ◽

...

Keyword(s):

Breast Cancer ◽

Lymph Node ◽

Sentinel Lymph Node ◽

Early Breast Cancer ◽

Axillary Surgery ◽

Kaplan Meier

Kleine Mammakarzinome werden häufiger entdeckt. Die nodal positiven Fälle werden seltener. Die sentinel lymph node (SLN) Technik könnte die geeignete Methode sein, unnötige Axilladissektionen zu vermeiden. Wir untersuchten ein Kollektiv von Patientinnen mit pT1 Tumoren in Bezug auf Nodalstatus (pT1a,b und c), auf Axillarezidiv sowie auf das Gesamtüberleben. Von 1983 bis 1997 wurden konsekutiv 185 Frauen mit einem Mammakarzinom </= 20mm Durchmesser behandelt. Die Überlebensdaten nach Kaplan-Meier stützten sich auf eine Kohorte aus 117 Patientinnen mit einer medianen Nachsorge von mindestens sieben Jahren. Es fanden sich sieben Patientinnen mit einem pT1a Karzinom, 30 mit einem pT1b Karzinom und 148 mit einem pT1c Karzinom. Im Mittel wurden 16 axilläre Lymphknoten vom Pathologen gezählt. Der axilläre Lymphknotenbefall zeigte eine erwartete Abhängigkeit von der Tumorgrösse: Kein Axillabefall bei nur sieben pT1a, 10% befallene Lymphknoten bei pT1b und 30% bei pT1c Karzinomen. Kein einziges Axillarezidiv wurde während der Beobachtungszeit entdeckt. Das Gesamtüberleben nach zehn Jahren betrug für Patientinnen mit einem pT1a Karzinom 100%, 91% für pT1b und noch 74% für pT1c Karzinome. Die Screening Mammographie entdeckt vermehrt kleinere Mammakarzinome. Die pN+ Stadien nehmen ab. Hier müssen Nutzen und Risiko der Axilladissektion einander kritisch gegenübergestellt werden. Eine selektive Axilladissektion ermöglicht die sentinel lymph node (SLN) Methode, welche in Verbindung mit aufwendigeren histologischen Nachweismethoden den axillären Nodalstatus realistisch wiedergibt.

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Sentinel lymph node biopsy and neoadjuvant chemotherapy in the management of early breast cancer: Safety considerations and timing

South African Medical Journal ◽

10.7196/samj.2017.v107i6.12239 ◽

2017 ◽

Vol 107 (6) ◽

pp. 497 ◽

Cited By ~ 1

Author(s):

Jenny Edge ◽

Sarah Nietz

Keyword(s):

Breast Cancer ◽

Lymph Node ◽

Sentinel Lymph Node ◽

Sentinel Lymph Node Biopsy ◽

Neoadjuvant Chemotherapy ◽

Early Breast Cancer ◽

Lymph Node Biopsy ◽

Node Biopsy ◽

Safety Considerations

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False-negative frozen section of sentinel nodes in early breast cancer (cT1-2N0) patients

World Journal of Surgical Oncology ◽

10.1186/s12957-021-02288-1 ◽

2021 ◽

Vol 19 (1) ◽

Author(s):

Zhu-Jun Loh ◽

Kuo-Ting Lee ◽

Ya-Ping Chen ◽

Yao-Lung Kuo ◽

Wei-Pang Chung ◽

...

Keyword(s):

Breast Cancer ◽

Lymph Node ◽

Early Breast Cancer ◽

False Negative ◽

Disease Free Survival ◽

Axillary Lymph Nodes ◽

Axillary Lymph ◽

Frozen Sections ◽

Sentinel Nodes ◽

Tumor Emboli

Abstract Background Sentinel lymph node biopsy (SLNB) is the standard approach for the axillary region in early breast cancer patients with clinically negative nodes. The present study investigated patients with false-negative sentinel nodes in intraoperative frozen sections (FNSN) using real-world data. Methods A case–control study with a 1:3 ratio was conducted. FNSN was determined when sentinel nodes (SNs) were negative in frozen sections but positive for metastasis in formalin-fixed paraffin-embedded (FFPE) sections. The control was defined as having no metastasis of SNs in both frozen and FFPE sections. Results A total of 20 FNSN cases and 60 matched controls from 333 SLNB patients were enrolled between April 1, 2005, and November 31, 2009. The demographics and intrinsic subtypes of breast cancer were similar between the FNSN and control groups. The FNSN patients had larger tumor sizes on preoperative mammography (P = 0.033) and more lymphatic tumor emboli on core biopsy (P < 0.001). Four FNSN patients had metastasis in nonrelevant SNs. Another 16 FNSN patients had benign lymphoid hyperplasia of SNs in frozen sections and metastasis in the same SNs from FFPE sections. Micrometastasis was detected in seven of 16 patients, and metastases in nonrelevant SNs were recognized in two patients. All FNSN patients underwent a second operation with axillary lymph node dissection (ALND). After a median follow-up of 143 months, no FNSN patients developed breast cancer recurrence. The disease-free survival, breast cancer-specific survival, and overall survival in FNSN were not inferior to those in controls. Conclusions Patients with a larger tumor size and more lymphatic tumor emboli have a higher incidence of FNSN. However, the outcomes of FNSN patients after completing ALND were noninferior to those without SN metastasis. ALND provides a correct staging for patients with metastasis in nonsentinel axillary lymph nodes.

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