<unk>  is a rare, severe lung disease that usually affects otherwise healthy individuals. There is no known cause or cure.<unk>  is often categorized as both an interstitial lung disease and a form of acute respiratory distress syndrome (ARDS) but it is distinguished from the chronic forms of interstitial pneumonia such as idiopathic pulmonary fibrosis.
Acute interstitial pneumonitis
Acute eosinophilic pneumonia
Swimming-induced pulmonary edema
Cryptogenic organizing pneumonia
Chemical pneumonitis
Atypical pneumonia
Idiopathic interstitial pneumonia
Malignant pleural effusion