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WHO Classification of Tumours
Acute megakaryoblastic leukaemia
Tumours of haematopoietic and lymphoid tissues


Definition

Acute megakaryoblastic leukaemia is an acute leukaemia with 20% or more blasts of which at least 50% are of megakaryo­cyte lineage; however, this category excludes cases of AML with myelodysplasia-related changes, AML with t(1;22)(p13;q13), inv(3)(q21q26.2), t(3;3) (q21;q26.2) and Down syndrome-related cases.

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