Successful Treatment of Disseminated Fusariosis in a 15-Month-Old Boy With Refractory Acute Lymphoblastic Leukemia Using High-Dose Voriconazole.

Appropriate diagnostic approach and timely administration of optimal antifungal therapy with VCZ were important for the successful treatment of disseminated fusariosis. Therapeutic drug monitoring, especially in <2-year-old children, is necessary to achieve sufficient drug exposure for optimal therapeutic response without toxicity.