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Updated: Jul 10, 2026
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Sentinel Lymph Node Mapping and Biopsy for Endometrial Cancer at Early Stage with Laparoscopy
Published on: August 19, 2021
[Sentinel lymph nodes in colorectal cancer]
Oddmund Nordgård1, Hartwig Kørner, Ole Gunnar Aasprong
1Laboratorium for molekylaerbiologi, Klinikk for blod- og kreftsykdommer, Stavanger universitetssjukehus, 4068 Stavanger. nood@sus.no
Summary
Sentinel lymph node mapping in colorectal cancer is feasible but standard analysis has high false negative rates. Further research into immunohistochemical or molecular analysis is needed to improve patient prognosis identification.
Area of Science:
- Oncology
- Surgical Pathology
Context:
- Regional lymph node metastasis is a key prognostic factor in colorectal cancer.
- Approximately 20% of lymph-node-negative patients experience recurrence.
- Sentinel lymph node biopsy aims to identify high-risk patients early.
Purpose:
- To evaluate the feasibility of sentinel lymph node mapping in colorectal cancer.
- To assess the efficacy of standard histopathological analysis of sentinel nodes.
- To determine the need for advanced analysis techniques for improved prognostic accuracy.
Summary:
- Sentinel lymph node mapping in colorectal cancer patients is technically achievable.
- Standard histopathological analysis of sentinel nodes shows high false negative rates, making it insufficient as a standalone diagnostic tool.
- Immunohistochemical or molecular analysis of sentinel nodes may offer better prognostic identification for patients without detectable metastases via routine methods.
Impact:
- Highlights the limitations of current sentinel lymph node analysis in colorectal cancer.
- Underscores the necessity for advanced diagnostic techniques to refine patient risk stratification.
- Guides future research towards developing more sensitive methods for detecting minimal residual disease.
