Clinical Research Directory

Inclusion Criteria: * 1\. Age between 18 and 75 years old 2. Confirmed adenocarcinoma cancer pathologically 3. Location of tumor: from the cecum to the right third of the transverse colon 4. CT showed right colon cancer: T1-T4a N+ M0 5. ASA scores I-III 6. ECOG (Eastern Cooperative Oncology Group) scale performance status of 0 or 1 7. Patient or family member, able to understand the study protocol and willing to participate in the study, providing written informed consent Exclusion Criteria: * 1\. Simultaneous or heterochronic multiple primary colon cancer 2. Patients with intestinal obstruction, intestinal perforation, intestinal bleeding, etc. requiring emergency surgery 3. Unsuitable for laparoscopic surgery (e.g., extensive adhesions due to previous major abdominal surgery; unsuitable for pneumoperitoneum for various reasons, etc.) 4. Pregnant or lactating women 5. Have a history of serious mental illness 6. History of iodine allergy 7. History of other malignant diseases within the last five years 8. History of prior neoadjuvant chemotherapy or radiation therapy 9. History of unstable angina or myocardial infarction within the last 6 months 10. History of continuous systemic corticosteroid use within one month