Isolated myeloperoxidase expression in pediatric B/myeloid mixed phenotype acute leukemia is linked with better survival

TO THE EDITOR: Mixed phenotype acute leukemia (MPAL) represents a heterogeneous group of leukemias accounting for 2% to 5% of all newly diagnosed acute leukemias.[1][1][⇓][2][⇓][3][⇓][4]-[5][5] Although most cases of acute leukemia display the differentiation pattern of a single lineage,