Canadian Medical Guide > Diseases > Hemic and Lymphatic Diseases > Hematologic Diseases > Leukocyte Disorders > Eosinophilia > Hypereosinophilic Syndrome Terms and Definitions

Hypereosinophilic Syndrome

Medical Definition:	A heterogeneous group of disorders with the common feature of prolonged eosinophilia of unknown cause and associated organ system dysfunction, including the heart, central nervous system, kidneys, lungs, gastrointestinal tract, and skin. There is a massive increase in the number of eosinophils in the blood, mimicking leukemia, and extensive eosinophilic infiltration of the various organs. It is often referred to as idiopathic.
Guide Notes:	do not confuse X ref LOEFFLER'S ENDOCARDITIS with LOEFFLER SYNDROME see PULMONARY EOSINOPHILIA
Also Called:	Idiopathic Hypereosinophilic Syndrome,Leukemia, Eosinophilic,Loeffler's Endocarditis
Previously Indexed:	Eosinophilia (1966-1993)

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