Effective Treatment of a Childhood Blastic Plasmacytoid Dendritic Cell Neoplasm with a Cutaneous Tumor Alone by Stem Cell Transplantation with Reduced Intensity Conditioning

Pediatric blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare hematological malignancy that has an extremely poor prognosis despite the use of intensive chemotherapy. Recently, treatment of BPDCN with bone marrow transplantation (BMT) using myeloablative conditioning has been reported to increase survival in adults. We report a 9-year-old girl with cutaneous BPDCN who was successfully treated with combination chemotherapy followed by BMT using reduced intensity conditioning (RIC), without any adverse complications. The success of this treatment regimen suggests that BMT with RIC may be a feasible option for treating children with cutaneous BPDCN.