Polycythemia vera (PV), a hematological neoplasm characterized by excessive erythropoiesis due to Janus kinase 2 (JAK2)- activating mutations. On the other hand, patients with secondary polycythemia (SP), a disorder mostly caused by an increased red cell mass due to chronic hypoxia (i.e, pulmonary disorders and smoking) and erythropoietin-producing tumors (such as leiomyoma, hemangiomas, renal cysts and various carcinomas), are phenotypically slightly different and are usually considered to have significantly better outcomes. Red blood cell distribution width (RDW) reflects the heterogeneity of red blood cell sizes (anisocytosis) and is routinely reported as a part of complete blood count by automated instruments in hematology laboratories.
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Hematocrit to Hemoglobin Ratio in Polycythemia Vera and Secondary Erythrocytosis
Timeframe: Patients will be collected from December 2022 to September 2023
Red Blood Cell Distribution Width in Polycythemia Vera and Secondary Erythrocytosis
Timeframe: Patients will be collected from December 2022 to September 2023