Patients randomized to neoadjuvant chemotherapy receive fluorouracil and cisplatin at 3-4 week intervals; fluorouracil is given by continuous intravenous infusion for 5 days and cisplatin is given on the first 2 days of fluorouracil administration. Tumor response is assessed after 2 courses; responding patients with no serious toxicity receive a third course. Surgery, as above, is initiated 4-6 weeks after the second or third course of chemotherapy. Upon recovery (within 3-6 weeks), patients who responded to neoadjuvant chemotherapy receive 3-4 additional courses of postoperative chemotherapy (maximum total of 6 courses). Patients whose best response was stable disease are assessed for postoperative radiotherapy.