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Updated: Jun 14, 2026
10:31
Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma
Published on: August 9, 2016
When do we miss synchronous gastric neoplasms with endoscopy?
Hang Lak Lee1, Chang Soo Eun, Oh Young Lee
1Department of Internal Medicine, Hanyang University Hospital, 133-070, Seoul, Korea.
Gastrointestinal Endoscopy
|April 13, 2010
Summary
Accurate detection of multifocal gastric cancer is crucial. Gastroscopy missed 14.67% of lesions, with small lesion size being a key risk factor for missed synchronous gastric cancers.
Area of Science:
- Gastroenterology
- Surgical Oncology
- Pathology
Background:
- Accurate detection of synchronous multifocal gastric cancer is essential for effective stomach cancer management.
- Gastroscopy and surgical resection are key diagnostic and treatment modalities.
Purpose of the Study:
- To compare the diagnostic sensitivity of gastroscopy with surgical resection for synchronous multifocal gastric cancer.
- To identify risk factors associated with the failure to detect additional gastric lesions during endoscopic examination.
Main Methods:
- Retrospective analysis of clinicopathological features of 51 patients with synchronous multifocal gastric carcinoma who underwent gastrectomy (2005-2008).
- Comparison of preoperative gastroscopic findings with surgically resected stomach specimens.
- Investigation of risk factors for missed lesions, particularly lesion size.
Main Results:
- Synchronous multifocal gastric cancer was more prevalent in older males and those with early gastric cancer.
- Gastroscopy missed 16 out of 109 lesions (14.67% miss rate), with a sensitivity of 85.3%.
- Small lesion size was identified as the primary risk factor for endoscopic underdetection of additional gastric lesions.
Conclusions:
- The entire stomach requires careful examination during endoscopy, especially when endoscopic resections are planned.
- Improved methods for evaluating patients with multifocal tumors are needed to enhance detection rates.
- A large-scale prospective study is warranted to validate these findings and explore risk factors further.
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