Pathophysiology
Eosinophilic pneumonia can develop in several different ways depending on the underlying cause of the disease. Eosinophils are thought to play a central role in defending the body against infection by parasites. Many diseases, such as asthma and eczema, are caused when eosinophils overreact to environmental triggers and release an excess of chemicals (cytokines) such as histamine. The common characteristic among different causes of EP is eosinophil overreaction or dysfunction in the lung.
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