Abstract
A 69-year-old man, a heavy smoker, was admitted to our hospital because of malignant squamous cells in sputum, without any abnormal shadow on the chest X-ray film. Bronchoscopy revealed a white solitary polypoid tumor at the bifurcation between left B1+2a+b and B1+2c, which was histologically diagnosed as solitary papilloma of the bronchus. Four months later, a squamous cell carcinoma in the right middle bronchus was found by follow-up endoscopy, and a right middle lobectomy was carried out. The tumor was completely resected. On follow-up endoscopy after the operation, a second squamous cell carcinoma in the right upper bronchus and a third squamous cell carcinoma in the upper trachea were revealed. Laser treatment and irradiation were performed for the second and third carcinomas.
