Photodynamic Therapy Plus Brachytherapy in Treating Patients With Lung Cancer

DISEASE CHARACTERISTICS: Histologically confirmed small cell or non-small cell primary lung cancer with symptomatic endobronchial lesion(s) partially or totally obstructing airway distal to the carina and accessible by endoscopy Recurrent disease following prior therapy and/or be ineligible for, or refuse, alternative standard therapy such as: Surgery External radiation therapy Chemotherapy High grade obstruction necessitating more rapid aeration and palliation than standard therapy can provide No evidence of encasement or extension of the tumor to the right or left major pulmonary vessels on CT of the chest No tumor involvement at trachea or carina PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-2 Life expectancy: Not specified Hematopoietic: WBC at least 4,000/mm3 Platelet count at least 100,000/mm3 Hepatic: Bilirubin less than 2 times the upper limit of normal SGOT/SGPT less than 2 times the upper limit of normal Renal: Creatinine no greater than 2.0 mg/dL Other: Not pregnant Adequate method of contraception required of all fertile patients Female fertile patients must have normal serum beta HCG Not eligible for standard therapy and/or other protocol therapy No hypersensitivity to DHE or other porphyrins Not concurrent photosensitizing drugs such as: Tetracycline Doxorubicin No contraindications to general anesthesia, including EKG abnormalities suggestive of acute ischemia PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: No chemotherapy within 3 weeks prior to study entry No doxorubicin within 8 weeks prior to study entry Endocrine therapy: Not specified Radiotherapy: Prior radiation therapy dose no higher than 75 Gy to proposed bronchial segment allowed No concurrent external brain radiation therapy Surgery: Not specified