Research progress of chronic eosinophilic pneumonia

Chronic eosinophilic pneumonia is a rare eosinophilic lung disease of unknown etiology characterized by eosinophils infiltrating in the lung.The clinical manifestations of chronic eosinophilic pneumonia are atypical,so this disease can be disdiagnosed easily.This paper reviews the definition,clinical manifestation,diagnosis,treatment and prognosis of chronic eosinophilic pneumonia. Key words: Eosinophilic lung disease; Chronic eosinophilic pneumonia