Abstract
A 73-year-old man, a heavy cigarette smoker, presented at a local hospital complaining of hemoptysis for a period of one month. He had been a victim of the atomic bomb in Hiroshima. Prior to admission to our hospital, he expectorated a fleshy mass 4.1 cm long and 1.4 cm in diameter. Fiberoptic bronchoscopy revealed a polypoid mass obstructing the right truncus intermedius and protruding into the main bronchus beyond the right upper lobe. He underwent a right middle and lower lobectomy. The primary site of the tumor was at the orifices of the middle lobe bronchus and the basal bronchus. The tumor showed intrabronchial branching growth into every segmental bronchus of the middle and lower lobes. It was diagnosed as a poorly differentiated squamous cell carcinoma. He died on the 130 th postoperative day with clinical evidence of an intraabdominal metastatic mass.
