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microcytosis

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mi·cro·cy·to·sis (mkr-s-tss)
n.
The presence of microcytes in the blood. Also called microcythemia.

microcytosis
[mī′krōsītō′sis]
Etymology: Gk, mikros + kytos + osis, condition
a hematologic condition characterized by erythrocytes that are smaller than normal. Microcytosis is found in iron deficiency anemia. Compare poikilocytosis. See also anisocytosis. microcytic, adj.

microcythemia [mi″kro-si-the´me-ah]
a condition in which the erythrocytes are smaller than normal; see also microcytic anemia. Called also microcytosis.

microcythemia, microcytosis
a condition in which the erythrocytes are smaller than normal.

microcytosis
Hematology RBCs with an MCV of < 65 fL and a diameter of ≤ 6 µm; microcytosis is typical of iron-deficiency anemia and thalassemia; RBCs may be low in iron. See Iron-deficiency anemia, Thalassemia. Cf Macrocystosis.


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The clinical manifestations range from mild anemia with microcytosis (thalassemia trait) to fatal severe anemia (Hb Bart's hydrops fetalis (7) or [beta]-thalassemia major).
The blood film appearance is similar to beta thalassaemia trait, with hypochromia, microcytosis and the presence of target cells.
Peripheral blood smear showed 80% polymorphonuclear leukocyte (PNL), 20% lymphocyte, erythrocytes were hypochrome and demonstrating microcytosis, poikilocytosis and anisocytosis.
 
 
 
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