Expiratory central airway collapse (ECAC) is a pathologic entity that involves the excessive dynamic narrowing of the central airways during the expiratory phase of respiration. ECAC represents a diagnostic challenge for clinicians as patients present with non-specific symptoms such as dyspnea, chronic cough, and recurrent respiratory infections [1]. ECAC comprises of two distinct disorders with similar clinical manifestations but different anatomic locations of collapse: tracheobronchomalacia (…