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.
- polycythemia rubra vera (PRV)
- Vaquez-Osler syndrome
- Vaquez’s disease
- Osler’s disease
See also: secondary polycythemia