Term
| Echinocytes (Description) |
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Definition
RBC’s with evenly-spaced projections
Results from an increase in the outer lipid bilayer of the RBC membrane
Some can be revert back to normal |
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Term
| Stomatocytes (Description) |
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Definition
Uniconcave Discs
Results from an increase in the inner lipid bilayer of the RBC membrane |
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Term
| Spherocytes (Description) |
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Definition
No biconcavity, no central pallor, increased osmotic fragility
Circular RBC’s
Results from macrocytes biting out inclusions (Pitting)
Normocytic |
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Term
| Shistocytes (Description) |
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Definition
The result of repeated putting or fibrin cutting
Found in people who have intravascular hemolytic anemia
-The blood cell gets cut in half by fibrin in the blood vessels |
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Term
| Acanthocytes (Description) |
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Definition
Have un-even, thorn-like projections
Not evenly spaced around the cell
Caused by altered lipids in the RBC
Normal life span |
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Term
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Definition
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Term
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Definition
Look like bulls-eyes
Can be artifacts
Have decreased osmotic fragility |
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Term
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Definition
Elongated at one end
Can be artifacts |
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Term
| Drepanocytes (Description) |
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Definition
Elongated crescent-shaped with pointed ends
Decreased osmotic fragility and decreased mechanical fragility |
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Term
| Elliptocytes (Description) |
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Definition
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Term
| Keratocytes (Description) |
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Definition
Concavity on one side and 2 hornlike projections on either end
Formed by pitting or by impalement on fibrin strands |
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Term
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Definition
2 concavities
Formed by pitting or by impalement on fibrin strands |
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Term
| Basophilic Stippling (Description) |
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Definition
| Bluish-black granular inclusions |
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Term
| Howell-Jolly Bodies (Description) |
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Definition
Dark purple or violet spherical granules
DNA fragments
Usually only 1 per cell
Look like a dot on the cell |
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Term
| Cabot Rings (Description) |
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Definition
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Term
| Heinz Bodies (Description) |
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Definition
Purple bodies
Not seen with Wright’s Stain
Have to use New Methylene Blue
Made up of denatured hemoglobin |
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Term
| Sideroblasts and Siderocytes (Description) |
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Definition
RBC’s with iron granules
Stained with Prussian Blue or Iron Stain
Look for them in the bone marrow to see if iron stores are normal |
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Term
| Pappenheimer Bodies (Description) |
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Definition
Iron-containing granules at the periphery of the cell
Visible with Wright and Prussian Blue Stain |
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