List eight radiographic features of cystic fibrosis.

1. Upper lobe predominance
2. Enlarged hilar shadows (owing to reactive nodal hyperplasia and large pulmonary arteries)
3. Cystic cavities with air-fluid levels
4. Fibrosis
5. Bronchiectasis with ring shadows, mucus plugging, and cysts
6. Emphysematous changes 7. Atelectasis and focal infiltration with peribronchial cuffing
8. Pneumothorax