OUTLINE: Patients receive docetaxel IV over 1 hour followed 1 hour later by cisplatin IV over 4 hours and fluorouracil IV and leucovorin calcium IV over 96 hours. Filgrastim (G-CSF) is administered subcutaneously beginning on day 5 and continuing until blood counts recover or day 10. Treatment repeats every 3 weeks for up to 3 courses. Within 2 weeks after the completion of chemotherapy, patients undergo definitive radiotherapy for about 7 weeks. After radiotherapy, patients who did not achieve complete remission after chemotherapy may undergo surgery. Patients are followed monthly for 1 year, then every 3 months thereafter.