<unk>  <unk>  is a form of lung disease characterized by progressive scarring of both lungs. The scarring (fibrosis) involves the pulmonary interstitium (the supporting framework of the lung).<unk>  is thus classified as a form of interstitial lung disease.
Usual interstitial pneumonia
Desquamative interstitial pneumonia
Lymphocytic interstitial pneumonia
Granulomatous–lymphocytic interstitial lung disease
Diffuse panbronchiolitis
Non-specific interstitial pneumonia
Cryptogenic organizing pneumonia
Pulmonary hyalinizing granuloma