CTICasesExcessive Dynamic Airway Collapse
Imaging findings
Inspiratory CT shows a normal trachea. Dynamic expiratory CT demonstrates severe collapse of the posterior membrane of the trachea, almost touching the anterior cartilaginous wall, while the C-shaped cartilage rings remain intact.
Key takeaways
Excessive dynamic airway collapse (EDAC) is characterized by expiratory invagination of the posterior membrane of the trachea, differing from tracheobronchomalacia which involves softening of the cartilaginous rings. It can only be diagnosed on expiratory or dynamic imaging.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Scar AdenocarcinomaNeoplastic
- COPA SyndromeCongenital
- Mediastinal ParagangliomaNeoplastic
- Post-Obstructive Pneumonia due to AdenocarcinomaNeoplastic
- Aspirated Thumbtack causing Post-Obstructive PneumoniaTrauma
- Esophageal Chicken Bone ImpactionTrauma
- Metastatic Calcification in DialysisMetabolic
- Unrepaired Tricuspid AtresiaCongenital
See all cases from April 27, 2019 →