Interstitial lung disease:
Chapter: 12
Refers to an inflammatory, occasionally fibrosing process, that occurs predominantly within the interstices or supporting structures of the lung (alveolar walls), as opposed to a lesion in which the predominant reaction takes place within the alveolar spaces. Examples of interstitial lung disease include usual interstitial pneumonia (UIP), DIP, Sarcoidosis, hypersensitivity pneumonitis, DAD, pneumoconiosis, etc.