EXAM:,  Magnified airway.,CLINICAL HISTORY: , An 11-month-old female with episodes of difficulty in breathing, cough.,TECHNIQUE: , Multiple fluoroscopic spot images of the pharyngeal airway, trachea, and mainstem bronchi were performed in various phases of respiration.,FINDINGS:,  The airway is patent throughout its course.  Specifically, the trachea and both mainstem bronchi do not demonstrate evidence of dynamic collapse greater than 50%.,No filling defects are identified.,The vocal cords demonstrate normal opening and closing.,IMPRESSION: , Normal magnified airway examination.radiology, magnified airway study, difficulty in breathing, airway study, breathing cough, mainstem bronchi, magnified airway, cough, trachea, mainstem, bronchi, airway