RBC Morphology Flashcards
Anisocytosis
Abnormal variation of RBC size or volume
Anisocytosis related disorders
Hemolytic anemia
Megaloblastic anemia
Fe deficiency anemias
Macrocyte
Large RBCs; > 8 mm diameter; > 100 fL
Macrocyte related disorders
Megaloblastic anemia
Myelodysplastic syndrome
Chronic liver disease
BM failure
Reticulocytosis
Microcyte
Small RBCs; <6 um; MCV < 8 fL
Microcyte related disorders
Fe deficiency anemia
Anemia of chronic inflammation
Sideroblastic anemia
Thalassemia / Hb E disease and trait
Poikilocytosis
Abnormal variation in RBC shape.
Poikilocytosis related disorder
Severe anemia
Spherocyte
Elliptical or oval shaped RBC
Elliptocyte related disorders
Hereditary elliptocytosis/ovalocytosis
Fe deficiency anemia
Thalassemia
Myelophthisic anemias
Stomatocyte
RBC central pallor resembles a mouth; slit-like area
Stomatocyte related disorders
Hereditary or acquired stomatocytosis (acquired: liver disease, alcoholism)
Rh deficiency syndrome
Artifact
Codocyte
RBC resembling a target
Hgb conc in the center and around the periphery
Codocyte related disorders
Liver disease
Hemoglobinopathies
Thalassemia
Keratocyte
RBC fragment that resembles a helmet