Acute monocytic leukemia

Acute monoblastic leukemia (AML-M5), is one of the most common subtypes of acute myeloid leukemia (AML) that is either comprised of more than 80% of monoblasts (AML-M5a) or 30-80% monoblasts with (pro)monocytic differentiation (AML-M5b). AML-M5 presents with asthenia, pallor, fever, and dizziness. Specific features of AML-M5 include hyperleukocytosis, propensity for extramedullary infiltrates, coagulation abnormalities including disseminated intravascular coagulation and neurological disorders. Leukemia cutis and gingival infiltration can also be seen. A characteristic translocation observed in AML-M5 is t(9;11).