[Acute eosinophilic pneumonia: presentation of a case and review of the literature].

Pulmonary eosinophilias are characterized by the appearance of lung infiltrates by eosinophils and the presence, commonly, of peripheral blood eosinophilia. Among idiopathic pulmonary eosinophilias, with no evidence of any cause or underlying disease, chronic eosinophilic pneumonia is the most characteristic. Recently, there has been described a few cases of eosinophilic pneumonia with many similarities to chronic eosinophilic pneumonia but with a shorter clinical course, a very good response to corticoid therapy, and without tendency to relapse. This process has been named acute eosinophilic pneumonia. We present a case of this entity and review the literature, emphasizing on the potential severity of this disease, which often conduce to progressive respiratory failure, and its excellent prognosis after appropriate treatment.