Staging laparoscopy and catheter implantation
GASTROINTESTINAL CANCER
SL will be performed only by surgeons participating in this study, with extensive experience in the diagnosis and surgical treatment of gastrointestinal cancer. It will be done through an umbilical portal with a 10 mm trocar for optics and two auxiliary portals of 5 mm on the right and left flank.When PC is suspected, a peritoneum biopsy will be performed for the intraoperative frozen section. If the presence of PC is confirmed by the pathologist, the PC index (PCI) will be calculated (