ABSTRACT
Acute eosinophilic pneumonia(AEP) was first described in 1989 and represents a clinical entity distinct from chronic eosinophilic pneumonia. AEP is characterized by acute respiratory insufficiency, hypoxemia, fever, diffuse radiographic infiltrates, and eosinophilia in bronchoalveolar lavage fluid or lung biopsies in the absence of infection, atopy, or asthma. Rapid response to corticosteroids is characteristic. We experienced a 47-year-old metal driller presenting typical clinical and radiological characteristics of AEP. We confirmed eosinophilic pneumonia with brochoalveolar lavage analysis and transbronchial lung biopsy. We report a case of AEP diagnosed by clinical, radiographic, and histologic findings with a brief review of the literature.