Anisopoikilocytosis
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| Anisopoikilocytosis | |
|---|---|
 | |
| Slight to moderate anisopoikilocytosis in a case of polycythemia vera | |
| Specialty | Hematology |
Anisopoikilocytosis is a medical condition illustrated by a variance in size (anisocytosis) and shape (poikilocytosis) of a red blood cell. The underlying cause can be attributed to various anemias, most often; beta thalassemia major, a form of microcytic anemia.[1] In β thalassemia major the beta hemoglobin chain is completely absent, rendering an increase in fetal hemoglobin (HbF).[2]