Abbreviations: ALL , acute
lymphoblastic leukemia; AML , acute myeloid leukemia; ANC ,
absolute neutrophil count; BMT , bone marrow transplantation;ESS , endoscopic sinus surgery; PCR , polymerase chain
reaction; SD, standard deviation
* Two patients were diagnosed with more than one underlying disease
† Other diagnoses included aplastic anemia, lymphomas, severe combined
immunodeficiency, hemophagocytic lymphohistiocytosis and Wilm’s tumor.
‡ Risk to develop invasive fungal disease according to the European
Conference on Infections in Leukemia (reference 14).