| Primary bronchiolar disorders |
| Constrictive bronchiolitis (obliterative bronchiolitis and bronchiolitis obliterans) |
| Acute bronchiolitis |
| Diffuse panbronchiolitis |
| Respiratory bronchiolitis (smoker's bronchiolitis) |
| Mineral dust airway disease |
| Follicular bronchiolitis |
| Other primary bronchiolar disorders, e.g. diffuse aspiration bronchiolitis and lymphocytic bronchiolitis |
| Interstitial lung disease with a prominent bronchiolar involvement |
| Hypersensitivity pneumonitis |
| Respiratory bronchiolitis-associated interstitial lung disease |
| Cryptogenic organising pneumonia |
| Other interstitial lung disease (pulmonary Langherans' cell hystiocytosis, sarcoidosis and bronchiolocentric interstitial pneumonia) |
| Bronchiolar involvement in diseases also involving large airways |
| Chronic obstructive pulmonary disease |
| Bronchiectasis, including cystic fibrosis |
| Asthma |
Adapted from [8] with permission from the publisher.