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Updated: Jul 7, 2026
Sentinel Lymph Node Mapping and Biopsy for Endometrial Cancer at Early Stage with Laparoscopy
Published on: August 19, 2021
[Sentinel lymph node mapping in colorectal cancer: study of 45 cases]
Yang-de Zhang1, Bu-Ning Tian, Hao Li
1National Hepatobiliary & Enteric Surgery Research Center, Central South University, Changsha 410008, China.
Objective:
To discuss the sentinel lymph node (SLN) mapping technique in colorectal cancer and its feasibility and utility.
Methods:
The dye lymphazurin was injected subserosally around the tumor during operation in 43 colorectal cancer, 20 males and 25 females, aged 49.5 (27 - 72) so as to find the SLNs. Fast-frozen pathology and routine pathology were performed too.
Results:
SLN was successfully identified in 42 of the 45 patients, with a successful biopsy rate of 93.3%. In these 45 patients, there were 250 lymph nodes examined, of which 52 nodes were identified as SLNs. The sensitivity was 90.4% (20/22), the specificity was 95.2% [(20 + 20)/42], and the false negative rate was 15% (3/20).
Conclusion:
SLN mapping in colorectal cancer plays an important role in diagnosing metastasis of lymph nodes, and can be used to direct the clinical surgery.
