| Hypersensitivity pneumonitis (60 to 80 percent) |
| Sarcoidosis (Acute - 40 to 60 percent) |
| Idiopathic pulmonary fibrosis (15 to 30 percent) |
| Berylliosis |
| Granite workers |
| Amiodarone pneumonitis |
| Lymphoma/Pseudolymphoma |
| Pulmonary Langerhans cell histiocytosis (Early) |
