Inflammatory bronchiolitis

While the term bronchiolitis in itself implies "inflammation" of the bronchioles by definition, some authors group the term inflammatory bronchiolitis as a specific group in terms of imaging as distinct from the more fibrotic - constrictive type .

Conditions that are described under this include

• infective bronchiolitis - infectious bronchiolitis
• bronchiolitis associated with hypersensitivity pneumonitis
• respiratory bronchiolitis - respiratory bronchiolitis interstitial lung disease
• follicular bronchiolitis
• panbronchiolitis
  • diffuse pan bronchiolitis
• bronchiolitis with associated bronchiectasis / bronchioloectasis

Other conditions that may fall under this may include

• aspiration bronchiolitis 
• immunotherapy related - e.g. Pembrolizumab-associated bronchiolitis