A 13-month-old female underwent unrelated cord blood transplantation (CBT) for juvenile myelomonocytic leukemia (JMML). In spite of progression of the disease after a conditioning regimen with high-dose chemotherapy, a complete remission was induced in concordance with development of acute GVHD after reduction of the immunosupressant. She has been in complete remission for 1 year after transplantation. This case illustrates that CBT can provide a potent graft versus leukemia (GVL) effect against JMML.
(c) 2007 Wiley-Liss, Inc.