Gastric antral vascular ectasia（GAVE）is an angiodysplastic disorder, which causes severe and prolonged gastric bleeding. Although GAVE has been described in adult patients treated with hematopoietic stem cell transplantation（HSCT), a few cases involving pediatric patients have also been reported. A 5-year-old boy with neuroblastoma（NB）developed severe hematemesis after undergoing tandem HSCT, i. e. autologous peripheral blood stem cell transplantation（auto-PBSCT), followed by allogeneic cord blood transplantation (allo-CBT). | Gastric antral vascular ectasia in a pediatric patient with neuroblastoma who underwent tandem stem cell transplantation
