- Arm I: Patients undergo radical total gastrectomy or radical subtotal distal gastrectomy, at the discretion of the surgeon, with perigastric lymph node dissection. Patients also may undergo lymphadenectomy at the discretion of the surgeon. At the beginning of the laparotomy, a pre-aortic, infra-colic node is sampled for staging purposes and frozen sections are examined during surgery. Patients who are found to have metastatic disease undergo palliative resection at the discretion of the surgeon and postoperative chemotherapy at the discretion of the oncologist.