Idiopathic hypereosinophilic syndrome is a multisystem disease with peripheral blood eosinophilia of at least 6 months duration, multiple organ system involvement, and no evidence for other known causes of eosinophilia. It is characteristically a disease of middle-aged men, often has a poor prognosis and is seldom found during childhood. Heart dicsease, characterized by endomyocardial fibrosis ...
