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The erythroblast is an immature form of red blood cell usually considered to be the next in sequence of development after the megaloblast. It contains a large nucleus and according to certain authors may contain nucleoli. According to others it never contains nucleoli and is incapable of mitotic division. It is evident that this is a matter of definition. The cytoplasm is basophilic and contains little or no hemoglobin. The diameter is variously given as from 8 micra to 25 micra. The smaller forms are certainly the more usual.
Erythroblasts are normally observed in the blood of new born infants
ERYTHROBLASTOSIS. Ann Intern Med. ;12:413–416. doi: 10.7326/0003-4819-12-3-413
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Published: Ann Intern Med. 1938;12(3):413-416.
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