PATIENT CHARACTERISTICS: Age: Any age Performance status: SWOG 0-2 Life expectancy: Not specified Hematopoietic: Granulocyte count at least 1,200/mm3 Platelet count at least 100,000/mm3 Hepatic: See Disease Characteristics Renal: See Disease Characteristics Other: No prior malignancy within past 5 years except adequately treated basal cell or squamous cell skin cancer, carcinoma in situ of the cervix, or incidental carcinoid