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Updated: Dec 15, 2025

Sentinel Lymph Node Mapping and Biopsy for Endometrial Cancer at Early Stage with Laparoscopy
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Sentinel lymph node biopsy for lung cancer.

Alexander Gregor1, Hideki Ujiie2,3, Kazuhiro Yasufuku1

  • 1Division of Thoracic Surgery, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Canada.

General Thoracic and Cardiovascular Surgery
|July 15, 2020
PubMed
Summary

Sentinel lymph node biopsy (SLNB) is crucial for melanoma and breast cancer staging. While applied to lung cancer for over 20 years, its impact remains limited, necessitating further research into its role and techniques.

Keywords:
Indocyanine green (ICG)Near-infrared (NIR)Non-small cell lung cancer (NSCLC)Sentinel lymph node (SLN)

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Area of Science:

  • Oncology
  • Surgical Oncology
  • Thoracic Surgery

Background:

  • Sentinel lymph node biopsy (SLNB) is a validated staging technique in melanoma and breast cancer.
  • The principle relies on identifying the first lymph node(s) draining a tumor for accurate nodal staging.
  • Despite extensive research for over two decades, SLNB has not significantly impacted lung cancer surgical management.

Purpose of the Study:

  • To review the current role and challenges of SLNB in lung cancer.
  • To summarize methods for sentinel lymph node identification and evaluation in lung cancer.
  • To highlight key questions for future clinical trials in lung cancer SLNB.

Main Methods:

  • Review of existing literature and ongoing discussions regarding SLNB in lung cancer.
  • Summary of techniques for sentinel lymph node identification (e.g., radiotracers, dyes).
  • Discussion of pathological evaluation methods for sentinel lymph node specimens.

Main Results:

  • SLNB has not achieved the same clinical impact in lung cancer as in other malignancies.
  • Ongoing debates persist regarding the precise role and optimal application of SLNB in lung cancer.
  • Standardized methods for identification and evaluation are still under development.

Conclusions:

  • Further research and well-designed trials are essential to clarify the utility of SLNB in lung cancer.
  • Addressing specific research questions is critical for advancing SLNB application in thoracic surgery.
  • The future of SLNB in lung cancer hinges on demonstrating its predictive value for nodal involvement and patient outcomes.