Colectomy for Cancer in the Elderly by Laparoscopy or Laparotomy

Inclusion Criteria: 1. Age ≥ 75 years 2. Histologically proven colonic adenocarcinoma (\> 15 cm from the anal margin) or precancerous colonic lesion non endoscopically resectable 3. Uncomplicated colonic tumor (no preoperative suspicion of invasion of adjacent structures as assessed by CT-scan (cT4), no tumoral perforation, or tumoral obstruction, or abscess, or hemorrhage) 4. No previous colonic cancer within the 5 last years 5. No peritoneal carcinosis on CT-scan 6. Patient able to fill in an auto-questionnaire alone or with some help 7. MMS (Mini Mental Score) ≥ 15 8. Given oral consent (formal informed consent is not required by French law for accepted procedures) Exclusion Criteria: 1. Rectal cancer (≤ 15 cm from the anal margin) 2. Locally advanced (cT4) or complicated tumor requiring extended resection or emergency surgery 3. Synchronous colonic cancer 4. \- Scheduled need for synchronous intra-abdominal surgery, including surgery for liver metastases 5. Absolute contraindications to general anesthesia or prolonged pneumoperitoneum 6. Patient not able to tolerate colon surgery according to the global comprehensive geriatric assessment 7. Estimated life expectancy less than 6 months 8. Patient under guardianship 9. Other known active cancer (except nonmelanomatous skin cancer) 10. Patient not affiliated to the social security system 11. Previous colonic resection