Related Experiment Video
Updated: Jan 31, 2026

Application of Robot-assisted Pancreaticobiliary Junction Resection in Benign Duodenal Tumors
Published on: December 20, 2024
Endoscopy-assisted laparoscopic submucosal dissection for a duodenal epithelial tumor
Yasuhiro Miyazaki1, Shuji Takiguchi2, Yukinori Kurokawa1
1Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Japan.
A novel endoscopy-assisted laparoscopic approach safely removed a large duodenal adenoma in an obese patient. This minimally invasive technique offers a viable alternative to traditional, more invasive surgeries for complex gastrointestinal tumors.
Area of Science:
- Gastroenterology
- Surgical Oncology
- Minimally Invasive Surgery
Background:
- Duodenal adenomas, particularly large or pedunculated ones, pose surgical challenges due to location and vascularity.
- Obesity can further complicate surgical exposure and increase risks in traditional open procedures.
- Standard surgical options like pancreaticoduodenectomy or transduodenal excision carry significant invasiveness and morbidity.
Observation:
- A 46-year-old obese woman presented with a 3.5-cm pedunculated adenoma in the descending duodenum with substantial blood flow.
- Preoperative assessment indicated poor surgical field exposure and high bleeding risk with conventional methods.
- Endoscopic submucosal dissection and open laparotomy were deemed unsuitable due to invasiveness and patient factors.
Findings:
- An innovative endoscopy-assisted laparoscopic submucosal dissection was successfully performed.
- This laparoscopic-endoscopic cooperative approach provided excellent visualization and control.
- The procedure was completed safely, achieving both surgical and oncological goals.
Implications:
- Endoscopy-assisted laparoscopic submucosal dissection represents a promising, minimally invasive surgical strategy for complex duodenal tumors.
- This technique may be particularly beneficial for obese patients or those with tumors in challenging locations.
- Further research into this cooperative approach could expand its application in gastrointestinal surgery.
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