Cancer-Related Dictionary

JAK2 mutation refers to a change in the JAK2 gene often linked with certain types of blood disorders. This gene is responsible for making a protein that aids in promoting growth and division of cells. However, the mutation can lead the cells to multiply uncontrollably, sometimes resulting in conditions like polycythemia vera, essential thrombocytosis or primary myelofibrosis.

Juvenile myelomonocytic leukemia (JMML) is a rare and aggressive form of blood cancer that primarily affects children under six years of age. It is characterized by the overproduction of immature white blood cells (myelomonocytes) in the bone marrow, impairing the production of essential blood cells and leading to severe complications such as anemia, infection, bleeding, and organ dysfunction.