Irregularity of the trachea and atelectasis in a middle-aged man.
D001984:Bronchial Neoplasms / Q000150:complications / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D001261:Pulmonary Atelectasis / Q000000981:diagnostic imaging* / Q000209:etiology; D011859:Radiography; D014134:Tracheal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging*