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What Is Macrocytosis?
Macrocytosis is a blood cell disorder characterized by altered blood cell formation that results in abnormally large erythrocytes (red blood cells) circulating in the bloodstream.
The mean corpuscular volume (MCV), which is a measure of the size of red blood cells in the bloodstream, is greater than 100 fL as shown in a complete blood count (CBC) laboratory analysis report.
Macrocytosis produces macrocytic anemias that are classified as megaloblastic or non-megaloblastic:
- Megaloblastic anemias result from disorders of DNA synthesis of red blood cell precursors (megaloblasts) in bone marrow due to B vitamin deficiency demonstrated by macro-ovalocytes and hypersegmented neutrophils.1
- Non-megaloblastic anemias are or those caused primarily by alcoholism, liver disease and hypothyroidism.2
What Is Macrocytosis In Celiac Disease and/or Gluten Sensitivity?
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