Abstract

In this paper, we report a 20-year-old male patient with periodic idiopathic eosinophilia, who had the complications periodically for more than 10 years. During the course of disease, the patient had even the peripheral blood leukocyte count of up to 50,000 cm3, with the eosinophil percentage of 80-90. No evidence of secondary causes of eosinophilia was found in the patient. Also, no significant relevant family history could be documented. The patient's problem led to heart, lung, and gastrointestinal diseases. In bone marrow biopsy and aspiration, no evidence in favor of cancer could be found. Such cases are recommended to be treated with corticosteroids or their alternatives (prednisolone).