Excessive Dynamic Airway Collapse Masquerading as Asthma

Expiratory central airway collapse (ECAC) includes 2 different pathophysiologic entities, excessive dynamic airway collapse (EDAC) and tracheobronchomalacia (TBM). We present a chronic cough case with history of asthma that was diagnosed as EDAC by dynamic bronchoscopy and its improvement with stent trial. A 71-year-old never-smoker man with past medical history mainly relevant for chronic rhinitis, gastroesophageal reflux, and chronic opioid...