Delaporte P, Salama J, Coulombel L, Lejeune F, Lortholary P
Ann Med Interne (Paris). 1980;131(8):531-4.
A new essential hypereosinophilic syndrome has been reported in a 53 years old man who presented an important blood and bone marrow hypereosinophilia of unknown etiology since 5 years. The evolution of the clinical course included neurological accidents (hemiplegia, spasmodic quadriplegia, seizures) congestive heart failure, hepatomegaly, transient renal involvement, pulmonary infiltrates with pleural hemorrhage, episodes of diarrhea and fever with weight loss. The cytological study of the eosinophiles showed the existence of abnormal inclusions which were confirmed by the electron microscope. These and cytoenzymological abnormalities led to discussion of the relationship between the essential hypereosinophilic syndrome and eosinophilic leukemia.