[The evolutionary characteristics of the hypereosinophilic syndrome]

The case here described is a young male aged 21 years who met all diagnostic criteria for HES: (1) persistent eosinophilia of over 1500/cubic millimeter (19.904-26.070/cubic millimeter) for longer than 6 month (12 month in our patient); (2) lack of evidence of other known causes of secondary hypereosinophilia (SH); (3) multiple organ involvement. The peculiar aspects found in our case are related to organ involvement: occurrence 2 months after HES onset of chronic myocardial infarction in four locations (apical, anteroseptal and posteroseptal, inferior, left ventricular) demonstrated by electrocardiographic and scintigraphic studies; early global cardiac insufficiency (6 months after the onset); acute renal failure (since HES onset) followed by chronic renal failure. The multiple and severe involvement of the nervous system (up to coma) were not a life threat. It is suggested that a possible explanation for the multiple organ involvement could be the chronic disseminated intravascular coagulation.