Extent of Lymph Node Dissection for Advanced Right-Sided Colon Cance

Exclusion Criteria

• •1. Past medical history of malignant tumor
• •2. Patients with multiple primary tumors
• •3. Patients with a history of inflammatory bowel disease or familial adenomatous polyposis
• •4. Patients with distant metastasis
• •5. Pregnant or breastfeeding women
• •6. History of other previous major abdominal surgery
• •7. Patients requiring emergency surgery (including tumor perforation, obstruction, hemorrhage, etc.)
• •8. Those with other clinical and laboratory conditions deemed by the investigator to be inappropriate for participation in the trial