1. Cystic Fibrosis - Bronchiectasis
Bilateral diffuse
Multiple cavities / Bronchiectasis
Peribronchial fibrosis
Prominent hilum
Hyperinflated

4. Obstructive lung disease
Increase TLC
Increase in RV
Decrease in peak expiratory flow
e.g. asthma
Increased airway resistance  increased loss of pressure  early small airway closure  decreased FVC, FEV1 and increased RV

5. Restrictive disease
Decreased TLC
Decrease in RV
e.g. fibrosis
Decreased ability of lungs to expand during inspiration  decreased FVC
Only inspiration affected.

6. normal (A), obstructive (B), and restrictive (C) patterns.