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Successful Umbilical Cord Blood Transplantation With Reduced-intensity Conditioning for Acute Myeloid Leukemia in a Child With Shwachman-Diamond Syndrome.

Outcomes of patients with Shwachman-Diamond syndrome (SDS) who developed myeloid malignancies are poor because of refractory disease and high hematopoietic stem cell transplantation-related mortality. We herein report a case of a 7-year-old girl with SDS who developed acute myeloid leukemia with monosomy 7. She was successfully treated with chemotherapy followed by unrelated cord blood transplantation with reduced-intensity conditioning consisting of fludarabine, melphalan, and high-dose cytarabine without significant toxicity. Reduced-intensity conditioning presented in this report might be a preferable option for SDS patients with acute myeloid leukemia, although further evaluation in a larger number of similar cases is necessary.