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Abstract
Non-Down syndrome pediatric acute megakaryoblastic leukemia (AMKL) may be classified according to the presence of recurrent genetic abnormalities with prognostic relevance. In this case study, we report on a girl with AMKL, 32 months old at the time of diagnosis, in whom we confirmed the presence of the cryptic, poor prognosis NUP98::KDM5A fusion. The patient achieved complete remission (CR) with the first course of chemotherapy, underwent haploidentical family donor hematopoietic stem cell transplantation (HSCT) without event, but relapsed 5 months after HSCT. Through this case report, we emphasize the good initial response to chemotherapy, and the early relapse despite undergoing HSCT in first CR. We review the limited literature on NUP98::KDM5A (+) pediatric AML, and underscore the need for further study to improve the outcome of patients with this rare AML subtype.
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