[Laparoscopic Endoscopic Cooperative Surgery(LECS)for Duodenal Tumors]

Area of Science:

• Gastroenterology
• Surgical Oncology
• Endoscopy

Background:

• Superficial non-ampullary duodenal tumors are rare, and established treatment strategies are lacking.
• Early detection and minimally invasive resection are crucial for favorable outcomes.

Observation:

• Two cases of superficial non-ampullary duodenal tumors (a tubular adenoma and a well-differentiated adenocarcinoma) were analyzed.
• Both lesions were successfully resected using laparoscopic endoscopic cooperative surgery (LECS).
• Pathological examination confirmed complete tumor removal with clear margins in both cases.

Findings:

• LECS is a feasible and effective technique for resecting superficial non-ampullary duodenal tumors.
• The adenoma was completely removed, and the adenocarcinoma was confined to the mucosal layer.
• No tumor cells were found at the surgical margins, indicating successful resection.

Implications:

• LECS provides a minimally invasive alternative for managing selected superficial duodenal tumors.
• Further case accumulation and research are needed to establish definitive treatment guidelines.
• This approach may improve patient outcomes by enabling organ preservation and reducing surgical morbidity.