CTICasesSevere Sporadic Constrictive Bronchiolitis
Imaging findings
High-resolution CT chest shows diffuse mosaic perfusion with severe, geographic air trapping on expiratory scans, without signs of bronchiectasis or interstitial fibrosis, in a patient with progressive dyspnea and no history of connective tissue disease or toxic inhalation.
Key takeaways
Sporadic constrictive bronchiolitis is a rare, idiopathic form of small airway disease characterized by fibrotic narrowing of the membranous bronchioles. Expiratoy CT is the imaging gold standard to demonstrate diagnostic air trapping, which correlates with fixed airflow obstruction on pulmonary function tests.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Cryptococcus Pulmonary Nodule in CVIDInfection
- Traumatic Right Hemidiaphragm HerniaTrauma
- Bilateral Diaphragm Paralysis from Cervical Cord CompressionTrauma
- Spontaneous Herniation of Transverse ColonOther
- Type A Aortic Dissection with PA Adventitial HematomaVascular
- Disseminated Alternaria InfectionIatrogenic
- ABPA with Alternating Lobar CollapseInflammatory
- Atrioesophageal FistulaIatrogenic
See all cases from November 9, 2021 →
Related Other cases
- Anterior Abdominal wall and Retroperitoneal Air Dissection from Pneumomediastinum
- Bilateral Anterior Pneumothoraces simulating Anterior Junction Line
- Diaphragmatic Excursion Failure
- Spontaneous Pneumomediastinum
- Right Ventricular Insertion Point LGE in Athletes
- Subtle Pulmonary Nodule on Lateral Chest Radiograph