Erythrocyte

Erythrocyte (Mature Erythrocyte) Bone marrow : 0 % Peripheral blood : Predominant cell type Size : 7-8 μm No nucleus No nucleoli No chromatin  No N/C ratio  Cytoplasm: Salmon with central pallor of about one-third of the diameter of the cell NOTE: The mature erythrocyte has lost the blue-gray color and is salmon colored...

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Reticulocyte

Reticulocyte ( Polychromatic Erythrocyte / Diffusely Basophilic Erythrocyte ) Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"جدول عادي"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; ...

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Orthochromic Normoblast

Orthochromic Normoblast ( Orthochromic Erythroblast / Metarubricyte ) Normal 0 false false false MicrosoftInternetExplorer4 1 - 4% of nucleated cells in BM Peripheral blood: 0 % Size = 10 -15 μm Low N/C ratio (1:2) Round nucleus No nucleoli Fully condensed chromatin  Cytoplasm:...

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Polychromatophilic Normoblast

Polychromatophilic Normoblast ( Polychromatic Normoblast / Polychromatic Erythroblast / Rubricyte ) Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"جدول عادي"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; ...

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Basophilic Normoblast

Basophilic Normoblast (Basophilic Erythroblast / Prorubricyte) Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"جدول عادي"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; ...

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Pronormoblast

Pronormoblast (also known as Proerythroblast / Rubriblast) is the first microscopically recognizable cell in erythrocyte lineage. /* Style Definitions */ table.MsoNormalTable {mso-style-name:"جدول عادي"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm...

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Morphologic Characteristics of Erythroid Precursors

Pronormoblast (rubriblast): 1% of Nucleated Cells in BM. Size = 20-25 μm. High N/C ratio (8:1) 1-3 faint nucleoli  Lacy chromatin  Basophilic normoblast (prorubricyte): 1-3% of nucleated cells in BM. Size = 16-18 μm Moderate N/C ratio (6:1) Indistinct nucleoli coarsening chromatin Polychromatophilic normoblast...

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