Polycythemia Vera
Synonyms
Disease, Osler-Vaquez
Erythremia
Erythremias
Osler Vaquez Disease
Osler-Vaquez Disease
Polycythemia Ruba Vera
Polycythemia Ruba Veras
Polycythemia Rubra Vera
Polycythemia Rubra Veras
Polycythemia, Primary
Polycythemias, Primary
Primary Polycythemia
Primary Polycythemias
Ruba Vera, Polycythemia
Ruba Veras, Polycythemia
Vera, Polycythemia Ruba
Vera, Polycythemia Rubra
Veras, Polycythemia Ruba
Veras, Polycythemia Rubra
A myeloproliferative disorder of unknown etiology, characterized by abnormal proliferation of all hematopoietic bone marrow elements and an absolute increase in red cell mass and total blood volume, associated frequently with splenomegaly, leukocytosis, and thrombocythemia. Hematopoiesis is also reactive in extramedullary sites (liver and spleen). In time myelofibrosis occurs.