Anum Aslam, Jose De Luis Cardenas, Robert J Morrison, Kiran H Lagisetty, Diana Litmanovich, Edith Carolina Sella, Elizabeth Lee, Prachi P Agarwal
Tracheobronchomalacia (TBM) and excessive dynamic airway collapse (EDAC) are airway abnormalities that share a common feature of expiratory narrowing but are distinct pathophysiologic entities. Both entities are collectively referred to as expiratory central airway collapse (ECAC). The malacia or weakness of cartilage that supports the tracheobronchial tree may occur only in the trachea (ie, tracheomalacia), in both the trachea and bronchi (TBM), or only in the bronchi (bronchomalacia). On the other hand, EDAC refers to excessive anterior bowing of the posterior membrane into the airway lumen with intact cartilage...
2022: Radiographics: a Review Publication of the Radiological Society of North America, Inc