Idiopathic pneumonia syndrome (IPS) is an acute lung complication observed after the early posthematopoietic stem cell transplantation (HSCT) period. Ruxolitinib was effective for a patient with myelodysplastic syndrome who developed severe IPS after second HSCT. No severe adverse effects were observed. Ruxolitinib may be an alternative choice for HSCT-related IPS.
Keywords: graft‐versus‐host disease; hemophagocytic lymphohistiocytosis; idiopathic pneumonia syndrome; myelodysplastic syndrome; ruxolitinib.
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