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Primary polycythemia

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A polycythemia characterized by an increased production of red blood cells as caused by an abnormality of the bone marrow.


Primary polycythemia is a form of myeloproliferative disease since the bone marrow is producing too many cells too quickly. Symptoms include headaches, vertigo, and an abnormally enlarged spleen and/or liver. It may progress, although rarely, into acute leukemia.


See also: secondary polycythemia