A promegakaryocyte is a precursor cell for a megakaryocyte, arising from a megakaryoblast.

The developmental stages of the megakaryocyte are: CFU-Me (pluripotential hemopoietic stem cell or hemocytoblast) → megakaryoblast → promegakaryocyte → megakaryocyte.

[edit] External links

• "Marrow aspirate, 10x. Promegakaryocyte" at ttuhsc.edu
• "Megakaryocytes: Promegakaryocyte" at bloodline.net

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v • d • e Myeloid physiology Hematopoiesis Myelopoiesis (CFU-GEMM) CFU-GM Granulopoiesis (Myeloblast, Promyelocyte, Myelocyte, Metamyelocyte, Band cell) Monocytopoiesis (Monoblast, Promonocyte) MEP Thrombopoiesis (Megakaryoblast, Promegakaryocyte) Erythropoiesis (Proerythroblast, Normoblast, Reticulocyte) General Extramedullary hematopoiesis Hemostasis Coagulation (Fibrinolysis) · Clot retraction · Platelet adhesiveness myeloid navs: cells/physio, disease of RBCs+megakaryocytes/monocytes+granulocytes/neoplasia, symptoms+signs/eponymous

Micromegakarioblast and Micromegakariocyte seen on MDS(Myelodysplastic Syndromes).