DISEASE CHARACTERISTICS:
Histologically confirmed non-small cell lung cancer of the following histologies: Squamous cell carcinoma, Adenocarcinoma, Large cell carcinoma, No mixed small/non-small cell carcinoma with predominant small cell component.
Unresectable stage IIIA/B disease confined to thorax including:
Microscopic disease involvement following attempted surgery and limited to anatomic areas corresponding to stage III disease (N2-3, T3-4).
Surgically treated stage I/II disease with histologic or cytologic proof of relapse and limited to anatomic areas corresponding to stage III disease (N2-3, T3-4).
T3, N0 tumor extending directly to the chest wall considered resectable and not eligible.
No stage IIIB disease with pleural effusion visible on chest x-ray unless related to a previous thoracotomy.
No typical carcinoid or mesothelioma.
Measurable disease preferred but not required.
PRIOR/CONCURRENT THERAPY:
No prior chemotherapy or thoracic radiotherapy.
PATIENT CHARACTERISTICS:
Age: 18 and over.
Performance status: ECOG 0-2.
Hematopoietic:
AGC greater than 2,000.
Platelets greater than 100,000.
Hepatic: Bilirubin no greater than 1.5 mg/dL.
Renal: Creatinine no greater than 1.5 mg/dL.
Cardiovascular:
No symptomatic heart disease including: Less than fully compensated congestive cardiac failure, Significant arrhythmias e.g.: Greater than first-degree heart block, Uncontrolled and symptomatic atrial dysrhythmia except sinus, bradycardia or sustained ventricular tachycardia, Myocardial infarction within 3 months.
Pulmonary: No major uncontrolled active infection (unless due to obstructed bronchus).
OTHER:
No major active psychiatric problem requiring hospitalization or psychotropic medication such as phenothiazines.
No prior second malignancy within 5 years except: nonmelanomatous skin cancer, In situ carcinoma of the cervix.
No pregnant or nursing women.