This means inequality in the size of erythrocytes (red blood cells); it occurs in many forms but is prominent in megaloblastic ANAEMIA.
n. an excessive variation in size between individual red blood cells. Anisocytosis is measured by some automatic analysers; these automated instruments calculate the red cell distribution width (RDW), which reflects anisocytosis. Anisocytosis may be a feature of almost any disease affecting the blood.
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