| Sarcoidosis |
| Vasculitides |
| Eosinophilic granulomatosis with polyangiitis (EGPA) |
| Granulomatosis with polyangiitis (GPA) |
| Microscopic polyangiitis (MPA) |
| Hemorrhagic syndromes |
| Anti-glomerular basement membrane antibody (Goodpasture) disease |
| Idiopathic pulmonary hemosiderosis |
| Pulmonary Langerhans cell histiocytosis |
| Chronic gastric aspiration |
| Amyloidosis |
| Lymphangioleiomyomatosis |
| Neurofibromatosis |
| Lymphangitic carcinomatosis |
| Chronic heart failure |
| End-stage kidney disease |
| Respiratory bronchiolitis |
| Pulmonary alveolar proteinosis |
| Gaucher disease |
| Niemann-Pick disease |
| Hermansky-Pudlak syndrome |
| Pulmonary veno-occlusive disease |
