What is the differential diagnosis for localized airspace disease (list 11)

1. Pneumonia
2. Atelectasis
3. Infarction or hemorrhage associated with PE
4. Pulmonary contusion
5. Collagen vascular disease or vasculitis
6. Drug and allergic reactions
7. Neoplasm
8. Radiation pneumonitis
9. Eosinophilic pneumonia, usually multi-focal
10. Amyloidosis
11. Crypyogenic Organizing Pneumonia (COP)