<unk>  pneumonitis involves inhalation of organic dusts which act as an antigen. This leads to an exaggerated immune response, which is called<unk>  reactions. In<unk>  pneumonitis, its either Type III<unk>  or type IV<unk> .
Hypersensitivity pneumonitis pathophysiology
Idiopathic interstitial pneumonia pathophysiology
Cryptogenic organizing pneumonia pathophysiology
Idiopathic pulmonary fibrosis pathophysiology
Hypersensitivity pneumonitis risk factors
Emphysema pathophysiology
Bronchiolitis pathophysiology
Pulmonary edema pathophysiology