OUTLINE: Patients who respond on Regimen A and who have no bulk disease greater than 5 cm are treated on Regimen B. Regimen A: Single-Agent Chemotherapy/Stem Cell Mobilization with Urothelial Protection and Growth Factor Therapy. Cyclophosphamide, CTX, NSC-26271; with Mesna, NSC-113891; and Granulocyte Colony Stimulating Factor (Amgen), G-CSF, NSC-614629. Regimen B: Sequential Radiotherapy, Single-Agent Chemotherapy, and Stem Cell Rescue. Total-body irradiation, TBI (equipment not specified); Etoposide, VP-16, NSC-141540; and Peripheral Blood Stem Cells, PBSC.