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Updated: Aug 10, 2026
Sentinel Lymph Node Mapping and Biopsy for Endometrial Cancer at Early Stage with Laparoscopy
Published on: August 19, 2021
Sentinel lymph node mapping with technetium-99m colloidal rhenium sulfide in patients with gastric carcinoma
Erito Mochiki1, Hiroyuki Kuwano, Youichi Kamiyama
1Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma 371-8511, Japan. emochiki@showa.gunma-u.ac.jp
Background:
The objective of this study was to determine, with the use of technetium-99m colloidal rhenium sulfide, whether the concept of sentinel lymph nodes (SLNs) is applicable to gastric cancers.
Methods:
Fifty-nine gastric cancer patients underwent radical gastrectomy and SLN mapping with an intraoperative hand-held gamma probe. After surgery, each transected lymph node was measured for radioisotope (RI) activities by a well-type scintillation counter.
Results:
SLNs were detectable in 57 (96%) of 59 patients. The sensitivity, specificity, and diagnostic accuracy were calculated to be 83.3%, 100%, and 92.9%, respectively. Sensitivity was 100% in the T1 group, 91.6% in the T2 group, and 62.5% in the T3 group. When RI activities were measured with a well-type scintillation counter, every metastatic non-SLN was found to be situated in the same lymphatic basin as the SLNs.
Conclusion:
The SLN concept is applicable to patients with early gastric cancer (T1). SLN mapping is suitable for identifying the lymphatic basin in cases of gastric cancer.
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