[Squamous papillomatosis of the left main bronchus and trachea: a case report].

A 49-year-old female complaining of dyspnea at exercise was admitted. Bronchoscopic examination revealed that the left main bronchus was almost obstructed by a tumor. A sleeve resection of the left main bronchus was performed. Histological examination confirmed that the tumor was squamous papilloma. After one year and eight months, bronchofiber examination disclosed papilloma in the trachea. Therefore, papilloma was treated with endoscopic methods, including Nd-YAG laser. The patient has survived for 11 years since first treatment.