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The term normoblast is sometimes used as a synonym for erythroblast, but at other times it is considered a subcategory. In the latter context, there are two types of erythroblasts:
- "normoblasts" - develop as expected
- "megaloblasts" - unusually large erythroblasts that can be associated with pernicious anemia and folic acid deficiency (collectively called megaloblastic anemia)
There are four stages in the development of a normoblast.
|Polychromatic normoblast (also polychromatophilic)|
|Orthochromatic normoblast (also orthochromatophilic)|
- Normoblasts at the US National Library of Medicine Medical Subject Headings (MeSH)
- BU Histology Learning System: 01804loa - "Bone Marrow and Hemopoiesis bone marrow smear, erythroblast series with proerythroblast "
- Histology at uiowa.edu
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