Body composition measurements will be performed before surgical procedure (7 days) and at day 1, day 5, 1 month, 3 months and 6 months after surgery.
Others data will be recorded including anthropometric measurements, nutritional intake, occurence of surgical complication, type of surgical procedure, type and stage of cancer, and CT-scan measurements of subcutaneous abdominal fat, visceral fat and peri-renal fat before surgery and at 6 months.