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Accurate classification and risk prediction are critical for therapeutic decision-making in patients with acute myeloid leukaemia (AML). Myelodysplasia-related (MR) gene mutations are classified as adverse genetic factors by the European LeukaemiaNet-2022 guidelines. However, their prognostic value in de novo AML remains controversial.

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Minimal residual disease (MRD) based risk stratification criteria for specific genetic subtypes remained unclear in childhood acute lymphoblastic leukemia (ALL). Among 723 children with newly diagnosed ALL treated with the Chinese Children Leukemia Group CCLG-2008 protocol, MRD was assessed at time point 1 (TP1, at the end of induction) and TP2 (before consolidation treatment) and the MRD levels significantly differed in patients with different fusion genes or immunophenotypes (P all < 0.001).

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