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Updated: Feb 15, 2026

Laparoscopy-endoscopy Cooperative Surgery for the Treatment of Gastric Gastrointestinal Stromal Tumors
Published on: February 19, 2022
[Laparoscopic and Endoscopic Cooporative Surgery(LECS)for Superficial Non-Ampullary Duodenal Tumor - A Case Report]
Shigeyuki Yoshiyama1, Hiroki Imaoka, Hiromi Yasuda
1Dept. of Gastrointestinal and Pediatric Surgery, Mie University.
Introduction:
We report a case ofsuperf icial non-ampullary duodenal tumor(SNADT)resected by laparoscopic and endoscopic cooperative surgery(LECS)technique.
Case Presentation:
A 55-year-old man underwent screening esophagogastroduodenoscopy. Endoscopy revealed 0- II a+ II c mucosal lesion measuring 15mm in size located the portion ofduodenum contralateral to the ampulla ofVater. During observation, irregularity in depressed mucosa was observed and malignant alteration was suspected. So, we performed local resection with LECS as diagnostic therapy. During operation, endoscopic mucosal resection(ESD)was performed first. Next, duodenum was mobilized laparoscopically and the floor of the ulcer was closed with endoscopy guided laparoscopic suturing technique. Histopathology revealed tubular adenoma and the resection margin was negative.
Discussion:
SNADT is rare condition and therapeutic strategy for SNADT has not established. Further study are needed.
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