Search results
Results from the WOW.Com Content Network
Histology image: 01805ooa – Histology Learning System at Boston University - "Bone Marrow and Hemopoiesis: bone marrow smear, neutrophilic metamyelocyte and mature PMN"
Chronic myelomonocytic leukemia (CMML) is a type of leukemia, which are cancers of the blood-forming cells of the bone marrow.In adults, blood cells are formed in the bone marrow, by a process that is known as haematopoiesis.
When stained with the usual dyes, the cytoplasm is distinctly basophilic and relatively more abundant than in myeloblasts or promyelocytes, even though myelocytes are smaller cells.
Conventionally, a leukocytosis exceeding 50,000 WBC/mm 3 with a significant increase in early neutrophil precursors is referred to as a leukemoid reaction. [2] The peripheral blood smear may show myelocytes, metamyelocytes, promyelocytes, and rarely myeloblasts; however, there is a mixture of early mature neutrophil precursors, in contrast to the immature forms typically seen in acute leukemia.
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.
Neutrophilic band cell Basophilic band cell Eosinophilic band cell. A band cell (also called band neutrophil, band form or stab cell) is a cell undergoing granulopoiesis, derived from a metamyelocyte, and leading to a mature granulocyte.
Bone marrow examination refers to the pathologic analysis of samples of bone marrow obtained by bone marrow biopsy (often called trephine biopsy) and bone marrow aspiration. ...
Bone marrow aspirate showing normal "trilineage hematopoiesis": myelomonocytic cells (an eosinophil myelocyte marked), erythroid cells (an orthochromatic erythroblast marked), and megakaryocytic cells Hematopoietic precursor cells: promyelocyte in the center, two metamyelocytes next to it and band cells from a bone marrow aspirate