Non-Hodgkin lymphoma (also known as non-Hodgkin’s lymphoma, NHL, or sometimes just lymphoma) is a cancer that starts in white blood cells called lymphocytes, which are part of the body’s immune system. NHL is a term that is used for many different types of lymphoma that all share some of the same characteristics. NHL usually starts in lymph nodes or other lymph tissues, but it can sometimes affect the skin.
B-cell acute lymphoblastic leukaemia (B-ALL) is an aggressive type of leukaemia in which too many B-cell lymphoblasts (immature white blood cells) are found in the bone marrow and blood. It is the most common type of acute lymphoblastic leukaemia (ALL). B-ALL is also called B-cell acute lymphocytic leukaemia and precursor B-lymphoblastic leukaemia.