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Myeloid tissue, in the bone marrow sense of the word myeloid (myelo-+ -oid), is tissue of bone marrow, of bone marrow cell lineage, or resembling bone marrow, and myelogenous tissue (myelo-+ -genous) is any tissue of, or arising from, bone marrow; in these senses the terms are usually used synonymously, as for example with chronic myeloid ...
In hematology, myelopoiesis in the broadest sense of the term is the production of bone marrow and of all cells that arise from it, namely, all blood cells. [1] In a narrower sense, myelopoiesis also refers specifically to the regulated formation of myeloid leukocytes (), including eosinophilic granulocytes, basophilic granulocytes, neutrophilic granulocytes, and monocytes.
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The American Cancer Society estimates that in 2014, about 5,980 new cases of chronic myeloid leukemia were diagnosed, and about 810 people died of the disease. This means that a little over 10% of all newly diagnosed leukemia cases will be chronic myeloid leukemia. The average risk of a person getting this disease is 1 in 588.
(previously called myeloid dendritic cell (mDC)) Most similar to monocytes. mDC are made up of at least two subsets: cDC-1, which is a major stimulator of cytotoxic T cells; cDC-2, which stimulates helper T cells; Interleukin 12 (IL-12), Interleukin 6 (IL-6), TNF, chemokines TLR 2, TLR 4: Plasmacytoid dendritic cell (pDC)
A comprehensive diagram of human hematopoiesis. Granulopoiesis consists of 5 stages, in which the myeloblast is the first recognizable cell. Next in the differentiation sequence is the monoblast and the promyelocyte, which can develop into one of three different precursor cells: the neutrophilic, basophilic or eosinophilic myelocyte.
Myeloid leukemia is a type of leukemia affecting myeloid tissue. Types include: Acute myeloid leukemia: A cancer of the myeloid line of blood cells, characterized by the rapid growth of abnormal cells that build up in the bone marrow and blood and interfere with normal blood cell production. Chronic myelogenous leukemia: A cancer of the white ...
A typical monoblast is about 12 to 20 μm in diameter, has a nuclear to cytoplasm ratio of 4:1 to 3:1, and, like most myeloid blasts, has a round to oval nucleus with fine chromatin structure. Compared to other myeloid blasts, monoblasts have more cytoplasm. [5] The nucleoli it contains is usually distinct. [6] One to four nucleoli are usually ...