5T/box(Ⅰ-01)10T/box(Ⅰ-02)5T/box(Ⅱ-01)10T/box(Ⅱ-02)5T/box(Ⅲ-01)10T/box(Ⅲ-02)5T/box(Ⅳ-01)10T/box (IV-02)

5T/box(Ⅰ-01)10T/box(Ⅰ-02)5T/box(Ⅱ-01)10T/box(Ⅱ-02)5T/box(Ⅲ-01)10T/box(Ⅲ-02)5T/box(Ⅳ-01)10T/box (IV-02)
20-40% of AML-M2 patients have t(8;21)(q22;q22) and occurs in up to 90% or more of M2b subtypes and less frequently in M1 and M4;
Prevalent in youth and children;
Marker of M2b subtype with good prognosis.