myeloproliferative disorder

myeloproliferative disorder One of the malignant diseases leading to overproduction of certain bone marrow cells, including those that give rise to the red blood cells, the granulocytes, and the blood platelets. The myeloproliferative disorders include chronic myelogenous leukemia, chronic idiopathic myelofibrosis, essential thrombocythemia, chronic neutrophilic leukemia, chronic eosinophilic leukemia, and polycythemia vera.