Mounier-Kuhn syndrome and bilateral vocal cord paralysis.

Mounier-Kuhn syndrome is a rare disorder of unknown cause that is characterized by atrophy of the elastic and smooth muscle of the tracheobronchial tree leading to tracheobronchomegaly and bronchiectasis. The syndrome is likely underdiagnosed, because the patients usually present with common respiratory symptoms such as productive cough and usually labeled as chronic obstructive pulmonary disease. Diagnosis is established on the basis of radiologic findings. Association with bilateral vocal cord paralysis has not been described. Treatment is mainly supportive. Symptomatic patients may require endobronchial stenting if airway collapse is encountered. Here, we described a patient who presented with hoarseness and pneumonia. Further studies confirmed the diagnosis of Mounier-Kuhn syndrome with bilateral vocal cord paralysis.