Primary pleomorphic sarcoma of lung--11 year survival.

Primary sarcomas of the lung are uncommon, potentially aggressive neoplasms that need to be distinguished from other malignant pulmonary tumors and whose biological behavior is as yet not fully understood. Primary undifferentiated pleomorphic sarcoma was diagnosed in the right lung of a 66 year-old man, who has survived over 11 years after treatment with endobronchial tumor debulking by laser therapy and radiotherapy.