A 55-year-old man with a tracheal tumor was referred to our institution for bronchoscopic diagnosis and treatment. He had a 2-year history of dyspnea with wheezing, and was given a diagnosis of asthma by his family doctor. His symptoms were not alleviated by treatment for asthma so he was referred to another hospital for further evaluation. A chest CT revealed a polypoid tumor narrowing the distal trachea (fig. 1). Positron emission tomography showed slight fluorodeoxyglucose uptake of the tumor, but no other abnormalities were found.
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