PATIENT CHARACTERISTICS: Age: 18 to 80 Performance status: Karnofsky 70-100% ECOG 0-2 Life expectancy: At least 3 months Hematopoietic: WBC at least 3,000/mm3 Granulocyte count at least 1,500/mm3 Platelet count at least 100,000/mm3 Hepatic: Bilirubin no greater than 2.0 mg/dL SGOT less than 2.0 times upper limit of normal (ULN) Renal: Creatinine less than 1.5 times ULN Creatinine clearance at least 50 mL/min Cardiovascular: LVEF at least 50% by MUGA Pulmonary: FVC, FEV1, and DLCO at least 70% of predicted Other: Not pregnant Fertile patients must use effective contraception during and for 3 months after study No AIDS-related illness No concurrent significant medical complications that would preclude compliance No severe anorexia, nausea, or vomiting No history of allergy or antibodies to 90Y hMN-14