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In oncology, polycythemia vera (PV) is an uncommon myeloproliferative neoplasm in which the bone marrow makes too many red blood cells. [1] The majority of cases [2] are caused by mutations in the JAK2 gene, most commonly resulting in a single amino acid change in its protein product from valine to phenylalanine at position 617.
Polycythemia vera (PV) is associated most often with the JAK2 V617F mutation greater than 95% of cases, whereas the remainder has a JAK2 exon 12 mutations. High hemoglobin or hematocrit counts are required, as is a bone marrow examination showing "prominent erythroid , granulocytic and megakaryocytic proliferation with pleomorphic, mature ...
Polycythemia vera (PCV) (a.k.a. polycythemia rubra vera (PRV)) occurs when excess red blood cells are produced as a result of an abnormality of the bone marrow. [3] Often, excess white blood cells and platelets are also produced. A hallmark of polycythemia vera is an elevated hematocrit, with Hct > 55% seen in 83% of cases. [20]
She was also diagnosed with a rare blood disease polycythemia vera, where the body makes too many red blood cells that thicken the blood and clots according to Mayo Clinic. To address the ...
Hydroxycarbamide, also known as hydroxyurea, is an antimetabolite medication used in sickle-cell disease, essential thrombocythemia, chronic myelogenous leukemia, polycythemia vera, and cervical cancer. [4] [5] In sickle-cell disease it increases fetal hemoglobin and decreases the number of attacks. [4] It is taken by mouth. [4]
Those who worked or lived at Camp Lejeune over the study period had at least a 20% higher risk of all myeloid cancers, including polycythemia vera, certain kinds of lung cancer and female ductal ...
A fourth trial begun in 2023 for the treatment of polycythemia vera is ongoing. [11] Several other investigator-initiated studies of bomedemstat either as monotherapy or in combination with other agents for hematologic malignancies or solid tumors are underway.
Currently, the most common cause is displacement of bone marrow by metastatic cancer (extramedullary hematopoiesis tends to be modest). Other causes include myeloproliferative disorders (especially late-stage or spent polycythemia vera), granulomatous diseases, and (lipid) storage diseases. Myelofibrosis can occur in all of these.