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The smallest of the nucleated precursors of the erythrocyte; slightly larger than a mature adult erythrocyte. Also known as acidophilic erythroblast; arthochromatic erythroblast; eosinophilic erythroblast; karyocyte; metakaryocyte; metanitricyte; metarubricyte.



one of the stages in the maturation of erythrocytes in the bone marrow of mammals and man. The cytoplasm of a developing normoblast gradually becomes enriched with hemoglobin and the nucleus degenerates, resulting in the emergence of a mature erythrocyte.

References in periodicals archive ?
Normoblast were few in numbers, but target cells were plenty.
There are fewer numbers of circulating reticulocytes and normoblasts in fetuses and newborns with anti-K disease than in fetuses with anti-D HDFN (7).
Pluripotential stem cell Myeloid Progenitors Myeloblast Monoblasts Marrow pool Mitotic Promelocytes Promonocytes precursors Myelocytes Post-mitotic Metamyelocytes bands Blood and Neutrophils, Monocytes tissue eosinophils and function basophils Innate Macrophage immunologic function Progenitors Megakaryocyte Erythroid Lymphoid Marrow pool Mitotic Maturing Normoblasts Pre-B precursors megakaryocytes Post-mitotic Reticulocytes B lymphoblast Blood and Platelets Erythrocytes B tissue lymphocytes function and plasma cells Haemostasis Oxygen Adaptive transport immunologic function Progenitors Marrow pool Mitotic Pro-T precursors Post-mitotic Lymphoblast Blood and T-lymphocytes tissue and NK cells function Fig.
In addition to the sickled RBCs, 13 had normoblasts and polychromasia, 15 had neutrophilic leucocytosis and 12 had thrombocytopenia.
(22) Chorangiosis has statistically nonsignificantly clustered with preuterine hypoxia, multiple pregnancy, and normoblasts in fetal circulation.
The slides were entirely scanned with 100x oil-immersion lens for abnormal nucleated cells such as blast cells, normoblasts, or immature granulocytes and, if any were found, the samples were excluded from the study.
Normoblasts may or may not be observed in the blood smear.
They contend that the failure of normal migration of the primiti-ve normoblasts results in the cerebral cleft.
Bone marrow examination shows normocellularity with findings of profound depletion of erythroid cells, abnormal very large pronormoblasts and normoblasts exhibiting intranuclear eosinophilic inclusion bodies (Lampion or Lantern cells).