Anisochromia

Anisochromia is a marked variability in the color density of erythrocytes (red blood cells), which indicates unequal hemoglobin content among the red blood cells.

Sideroblastic anemia or other severe forms of anemia may cause anisochromatism. It can also be seen after blood transfusions are administered, because blood products from multiple people may have different chromacity.^[1]^[2]

References

^ Textbook of Family Medicine (9 ed.). Elsevier. 2016. pp. 947–948.
^ Laboratory Tests and Diagnostic Procedures (6 ed.). Saunders. 2013. pp. 953–993.

Blood film findings

Red blood cells

Size	Anisocytosis Macrocytosis Microcytosis
Shape	Poikilocytosis Membrane abnormalities Acanthocyte Codocyte Elliptocyte Hereditary elliptocytosis Spherocyte Hereditary spherocytosis Dacrocyte Echinocyte Schistocyte Degmacyte Sickle cell/drepanocyte Sickle cell disease Stomatocyte Hereditary stomatocytosis
Colour	Anisochromia Hypochromic anemia Polychromasia
Inclusion bodies	Developmental Howell–Jolly body Basophilic stippling Pappenheimer bodies Cabot rings Hemoglobin precipitation Heinz body
Other	Haemoconia Red cell agglutination Rouleaux

White blood cells

Lymphocytes	Reactive lymphocyte Smudge cell Russell bodies
Granulocytes	Hypersegmented neutrophil Arneth count Pelger–Huët anomaly Döhle bodies Toxic granulation Toxic vacuolation Critical green inclusion Alder–Reilly anomaly Jordans' anomaly Left shift
Other	Auer rod