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Allogeneic bone marrow transplantation in a patient with hypereosinophilic syndrome

We describe a 32‐year‐old man with idiopathic hypereosinophilic syndrome (HES) who presented with pulmonary dysfunction, thrombocytopenia, lymphadenopathy, and hepatosplenomegaly. The patient developed progressive disease on prednisone and hydroxyurea therapy, and he underwent a successful allogeneic bone marrow transplantation (BMT). The patient is asymptomatic with no evidence of eosinophilia 30 months after transplantation. There is currently no cure for patients with HES, and BMT should be considered in selected patients. © 1996 Wiley‐Liss, Inc.