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Acute megakaryoblastic leukemia (AMKL) is life-threatening leukemia in which malignant megakaryoblasts proliferate abnormally and injure various tissues. Megakaryoblasts are the most immature precursor cells in a platelet-forming lineage; they mature to promegakaryocytes and, ultimately, megakaryocytes which cells shed membrane-enclosed particles, i.e. platelets, into the circulation.
Bone marrow smears of acute megakaryoblastic leukemia, with May-Grün-wald-Giemsa staining, ×100. (A) Cytoplasmic blebs (black arrow) and binucleated cell. (B) Cell cluster giving a pseudo-solid tumor aspect of AMKL.
MKL/megakaryoblastic leukemia 1 (also termed MRTFA/myocardin related transcription factor A) is a protein that in humans is encoded by the MKL1 gene. [5] [6] [7] [8]
Subtypes of AML include acute promyelocytic leukemia, acute myeloblastic leukemia, and acute megakaryoblastic leukemia. Chronic myelogenous leukemia (CML) occurs mainly in adults; a very small number of children also develop this disease. It is treated with imatinib (Gleevec in United States, Glivec in Europe) or other drugs. [20]
Chronic myelogenous leukemia: A cancer of the white blood cells. Acute megakaryoblastic leukemia: A life-threatening leukemia in which malignant megakaryoblasts proliferate abnormally and injure various tissues. Blastic plasmacytoid dendritic cell neoplasm: A rare hematologic malignancy which is a malignancy of plasmacytoid dendritic cells.
Transient myeloproliferative disease develops and may be of concern in fetuses. Features in a review of 39 reported fetal cases include: reduced platelet production often accompanied by significantly reduced levels of circulating platelets; reduced red blood cell production sometimes accompanied by mild anemia; increased levels of circulating megakaryoblasts and white blood cells; grossly ...
Acute megakaryoblastic leukemia: D007947 Acute megakaryoblastic leukemia (AMKL) is a form of acute myeloid leukemia where megakaryoblasts account for approximately 30% of the nucleated cells within the bone marrow. [81] Mast cell leukemia: Panmyelosis: C94.4: Acute panmyelosis with myelofibrosis: C94.4
Acute lymphoblastic leukemia (ALL) 4.0% Acute myeloid leukemia (AML) 8.7% Chronic lymphocytic leukemia (CLL) sorted under lymphomas according to current WHO classification; called small lymphocytic lymphoma (SLL) when leukemic cells are absent. 10.2% Chronic myelogenous leukemia (CML) 3.7% Acute monocytic leukemia (AMoL) 0.7% Other leukemias 3.1%