Morphology: red blood cells often show artifactual crenation (sharp-pointed margins) with little to no central pallor and mild to moderate poikilocytosis. Lifespan: 70 – 98 days Other features: rouleaux is common. Young… Read more Normal Porcine Erythrocytes →
Morphology: relatively large, uniform red blood cells with central pallor. Lifespan: 110 – 120 days Other features: small numbers of polychromatophils, nucleated red blood cells, and Howell-Jolly bodies may be present… Read more Normal Canine Erythrocytes →
Morphology: variation in red blood cell size due to the presence of red cells larger than normal (macrocytes and polychromatophils), red cells smaller than normal (microcytes and spherocytes), or both. Commonly… Read more Anisocytosis →
Morphology: immature red blood cells that stain blue with new-methylene blue due to precipitation of retained cytoplasmic RNA. Aggregate reticulocytes are less mature with large amounts of RNA that form dark… Read more Reticulocytes →
Morphology: immature red blood cells that stain dark purple on Romanowsky stains (Wright’s, Diff-Quick) due to retained cytoplasmic RNA. Larger than normal red cells. Commonly seen with: features of regenerative anemia (macrocytosis,… Read more Polychromatophils →
Cells and Smears 