Mounier-kuhn syndrome: a case report.

Mounier-Kuhn syndrome is a rare clinical and radiologic entity characterized by the pathologic dilatation of the trachea and bronchi. The clinical features consist of expiratory central airway collapse, airflow limitation, and clinical presentation similar to chronic bronchitis. A 73-year-old man was admitted to the hospital with the complaints of cough, sputum, dyspnea, and recurrent bronchitis. The radiologic, spirometric, and bronchoscopic findings showed the Mounier-Kuhn syndrome. We describe characteristic bronchoscopic and spirometric features of the Mounier-Kuhn syndrome.