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What is Polycythemia Vera?

Definition of Polycythemia Vera

Polycythemia Vera is an abnormal increase in blood cells (primarily red blood cells) resulting from excess production by the bone marrow. Polycythemia vera is an acquired disorder of the bone marrow that causes the overproduction of all three blood cell lines: white blood cells, red blood cells, and platelets. It is a rare disease that occurs more frequently in men than women, and rarely in patients under 40 years old. For this disorder to be sever enough it must be coupled with erythrocytosi, splenomegaly and leukocytosis or thrombosytosis.


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