OUTLINE: Randomized study. Patients are registered and randomized to treatment within 25 days of surgery. Arm I: Radiotherapy. Irradiation of the preoperative primary tumor site with a boost to areas at high risk for recurrence using Co60 equipment, 4-6 MV linear accelerators, or 6-12 MeV electrons. Arm II: Radiotherapy plus Single-Agent Chemotherapy. Irradiation as in Arm I; plus Cisplatin, CDDP, NSC-119875.