MPN, or "Myeloproliferative neoplasm", is a type of blood cancer that occurs when the body overproduces blood cells. There are several synonyms for MPN, including Chronic Myeloid Leukemia, Polycythemia Vera, and Essential Thrombocythemia. These conditions share similar characteristics, such as excessive production of certain blood cells, and may have similar symptoms such as fatigue, weakness, and increased risk of bleeding or blood clots. However, they also have distinct features and treatment approaches. Therefore, accurate diagnosis and appropriate treatment are crucial in achieving optimal outcomes for patients with MPN and related conditions.