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Definition
Acute monoblastic/monocytic leukemia (AML-M5), is one of the most common subtypes of acute myeloid leukemia (AML; see this term) 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).
For more information, see the Hematopoietic database at https://seer.cancer.gov/seertools/hemelymph
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).
For more information, see the Hematopoietic database at https://seer.cancer.gov/seertools/hemelymph
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Histology
Primary Sites
C421: Bone marrow
