Frequently asked questions What is acute lymphoblastic leukaemia? Acute lymphoblastic leukaemia ALL is a type of cancer that affects the blood and bone marrow.
Cancer starts when cells in the body begin to grow out of control. There are many kinds of cancer. Cells in nearly any part of the body can become cancer. To learn more about cancer and how it starts and spreads, see What Is Cancer?
Leukemias are cancers that start in cells that would normally develop into different types of blood cells. Most often, leukemia starts in early forms of white blood cells, but some leukemias start in other blood cell types. There are several types of leukemia, which are divided based mainly on whether the leukemia is acute fast growing or chronic slower growingand whether it starts in myeloid cells or lymphoid cells.
Acute lymphocytic leukemia ALL is also called acute lymphoblastic leukemia. ALL starts in the bone marrow the soft inner part of certain bones, where new blood cells are made. Most often, the leukemia cells invade the blood fairly quickly. They can also sometimes spread to other parts of the body, including the lymph nodes, liver, spleen, central nervous system brain and spinal cordand testicles in males.
Some cancers can also start in these organs and then spread to the bone marrow, but these cancers are not leukemia. Other types of cancer that start in lymphocytes are known as lymphomas either non-Hodgkin lymphoma or Hodgkin lymphoma.
While leukemias like ALL mainly affect the bone marrow and the blood, lymphomas mainly affect the lymph nodes or other organs but may also involve the bone marrow.
Sometimes it can be hard to tell if a cancer of lymphocytes is a leukemia or a lymphoma. Normal bone marrow, blood, and lymph tissue To understand leukemia, it helps to know about the blood and lymph systems.
Bone marrow Bone marrow is the soft inner part of certain bones. It is made up of blood-forming cells, fat cells, and supporting tissues. A small fraction of the blood-forming cells are blood stem cells.
Inside the bone marrow, blood stem cells go through a series of changes to make new blood cells. During this process, the cells develop into 1 of the 3 main types of blood cell components: Red blood cells White blood cells Red blood cells Red blood cells RBCs carry oxygen from the lungs to all other tissues in the body, and take carbon dioxide back to the lungs to be removed.
Platelets Platelets are actually cell fragments made by a type of bone marrow cell called a megakaryocyte. Platelets are important in plugging up holes in blood vessels caused by cuts or bruises. White blood cells White blood cells WBCs help the body fight infections. The main types of WBCs include lymphocytes, granulocytes, and monocytes.
Lymphocytes are the main cells that make up lymph tissue, a major part of the immune system. Lymph tissue is found in lymph nodes, the thymus, the spleen, the tonsils and adenoids, and is scattered throughout the digestive and respiratory systems and the bone marrow.
Lymphocytes develop from cells called lymphoblasts to become mature, infection-fighting cells. There are 2 main types of lymphocytes: B lymphocytes B cells: B cells help protect the body by making proteins called antibodies. The antibodies attach to germs bacteria, viruses, and fungi in the body, which helps the immune system destroy them.
T lymphocytes T cells:What Is Acute Lymphoblastic Leukemia? ALL is a type of leukemia that starts from white blood cells in the bone marrow, the soft inner part of bones. It develops from cells called lymphocytes, a type of white blood cell central to the immune system, or from lymphoblasts, an immature type of lymphocyte.
Oct 17, · Acute lymphocytic leukemia (ALL), also called acute lymphoblastic leukemia, is a cancer that starts from white blood cells called lymphocytes in the bone marrow.
Childhood acute lymphoblastic leukemia (ALL) is a type of cancer in which the bone marrow makes too many immature lymphocytes (a type of white blood cell). Childhood acute lymphoblastic leukemia (also called ALL or acute lymphocytic leukemia) is a cancer of the blood and bone marrow.
Acute lymphoblastic leukaemia (ALL) is the most common form of childhood leukaemia.
There are up to new diagnoses of ALL every year in the UK in children aged years. UK NEQAS for Leucocyte Immunophenotyping is an international External Quality Assessment (EQA)/Proficiency Testing (PT) provider.
Acute lymphoblastic leukemia (ALL) is a cancer that affects the white blood cells. These cells fight infection and help protect the body against disease.
Patients with ALL have too many immature white blood cells in their bone marrow. These cells crowd out normal white blood cells. Without enough.