CTICasesCombined Right Upper and Middle Lobe Collapse due to Central Bronchial Obstruction
Imaging findings
Radiograph shows a hazy opacity and significant volume loss in the right hemithorax with a sharp interface mimicking left upper lobe collapse. Chest CT confirms combined collapse of both the right upper and middle lobes secondary to a central obstructing hilar mass invading the right-sided airways.
Key takeaways
Combined collapse of the right upper and middle lobes is an uncommon pattern that can radiographically mimic left upper lobe collapse due to the shift of mediastinal structures and the orientation of the major fissure. This pattern is typically caused by a central obstructing lesion, such as lung cancer, and warrants urgent diagnostic CT and bronchoscopy.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Right Ventricular Outflow Tract Fistula and RCA Epicardial Hemorrhage post-TAVRIatrogenic
- Aortic Graft Dehiscence and Coronary Napkin Ring SignVascular
- Lipomatous Hypertrophy of the Interatrial SeptumNeoplastic
- Edwards INTUITY Elite Rapid-Deployment Bioprosthetic Aortic ValveArtifact
- Alveolar Pulmonary Edema due to OverhydrationVascular
- Tuberculous Aortic Root EndocarditisInfection
- Bioprosthetic Mitral Valve EndocarditisInfection
- Pulmonary Arteriovenous Malformation in Hereditary Hemorrhagic TelangiectasiaCongenital
See all cases from January 13, 2017 →