JoVE - Journal of Visualized Experiments
JoVE Visualize
Contact Us

Sentinel lymph node detection for lung cancer surgery: a possible pathological surrogate of overall lymph node dissection

  • 0Department of Thoracic Surgery, Nancy Regional University Hospital, Nancy, France.
Frontiers in Oncology +

|

March 31, 2025

|

March 31, 2025

View abstract on PubMed

Summary

This summary is machine-generated.

Sentinel lymph node (SLN) identification in lung cancer surgery shows 100% pathological concordance when the SLN is cancer-free. This suggests SLN status accurately predicts the overall lymph node pathological status, potentially refining surgical staging.

Area Of Science

  • Oncology
  • Surgical Pathology
  • Thoracic Surgery

Background

  • Systematic lymph node dissection (SLND) is standard for lung cancer, unlike sentinel lymph node (SLN) identification in breast cancer/melanoma.
  • Limited data exists on SLN as a surrogate for lymph node status in lung cancer.
  • This study evaluates pathological concordance between SLN and complete lymphadenectomy in lung cancer.

Purpose Of The Study

  • To assess the pathological concordance between sentinel lymph nodes (SLNs) and complete lymphadenectomy in lung cancer patients.
  • To determine if SLN status can reliably predict the pathological status of other lymph nodes in the thoracic region.

Main Methods

  • Retrospective review of localized lung cancer cases undergoing SLN identification and surgery (segmentectomy/lobectomy) between December 2020 and December 2023.
  • Examination of pathological status of SLN and remaining lymph nodes to calculate concordance rate.
  • Inclusion criteria: localized stage I-IIA non-small cell lung cancer with suspected node-negative disease (N0).

Main Results

  • 106 patients with localized stage I-IIA non-small cell lung cancer were included.
  • 90.6% of patients had a node-negative SLN (pN0), with a 9.4% upstaging rate to node-positive (pN+).
  • A 100% pathological concordance was observed: all patients with a pN0 SLN also had negative results in the complete lymph node dissection (pN0).

Conclusions

  • Sentinel lymph node biopsy demonstrates 100% pathological concordance with complete lymph node dissection when the SLN is negative for cancer.
  • The SLN serves as a reliable indicator of the overall pathological status of thoracic lymph nodes in lung cancer.
  • This finding supports the potential role of SLN identification in refining staging and surgical management for lung cancer.

Keywords: