[Clinical case of the month. Chronic eosinophilic pneumonia].

We report the case of a 32-year old man who had a feverish pneumopathy with coughing. An idiopathic eosinophilic pneumonia was soon disclosed; the evolution was rapidly favourable under systemic corticotherapy, but marked by a cortico-dependence in the long term. The follow-up of the relapses, when corticotherapy was stopped, showed a perfect correlation between reappearance of somatic plaints and eosinophilic blood levels.