- Etiology: 1) viral infection -> 2) disease of airways / airway inflammation -> bronchial wall thickening -> ball-valve effect -> air trapping, 3) increased mucous production -> mucous plugs
- CXR: airway thickening, hyperinflation = flattened diaphragm, shifting subsegmental atelectasis from mucous plugs
- DDX: asthma, congenital heart disease
- Complications: small percentage get concurrent bacterial superinfection
Radiology Cases of Viral Pneumonia

Radiology Cases of Viral Pneumonia with Bacterial Suprainfection
