Successful treatment of immediate allogeneic myeloablative hematopoietic stem cell transplantation from a HLA‐mismatched sibling donor for active systemic epstein–barr virus‐positive T‐cell lymphoproliferative disease of childhood following primary acute epstein–barr virus infection

A 22-year-old female was admitted for sustained high fever and diagnosed with systemic Epstein-Barr virus-positive T-cell lymphoproliferative disease. As her clinical course was so aggressive, she immediately underwent allogeneic myeloablative bone marrow transplantation from an HLA-mismatched sibling donor on hospital day 46. The patient has remained in complete remission for 3 years.