Leukemias are cancers that begin in cells that normally develop into various types of blood cells. Most leukemias begin in the early stages of white blood cells, but some leukemias begin in other types of blood cells. Acute lymphocytic leukaemia (ALL) is a type of leukaemia that is also known as acute lymphoblastic leukaemia. The term “acute” refers to the fact that the leukaemia can progress quickly and, if left