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Questions About Cancer? 1-800-4-CANCER

NCI Dictionary of Cancer Terms

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13 results found for:       ALL



ALL      
An aggressive (fast-growing) type of leukemia (blood cancer) in which too many lymphoblasts (immature white blood cells) are found in the blood and bone marrow. Also called acute lymphoblastic leukemia and acute lymphocytic leukemia.

all-trans retinoic acid    listen   (all-tranz REH-tih-NOH-ik A-sid)
A nutrient that the body needs in small amounts to function and stay healthy. All-trans retinoic acid is made in the body from vitamin A and helps cells to grow and develop, especially in the embryo. A form of all-trans retinoic acid made in the laboratory is put on the skin to treat conditions such as acne and is taken by mouth to treat acute promyelocytic leukemia (a fast-growing cancer in which there are too many immature blood-forming cells in the blood and bone marrow). All-trans retinoic acid is being studied in the prevention and treatment of other types of cancer. Also called ATRA, retinoic acid, tretinoin, and vitamin A acid.

Allegra    listen   (uh-LEH-gruh)
A drug used to treat certain allergy symptoms. It blocks a chemical released during an allergic response that causes itching, sneezing, runny nose, wheezing, and watery eyes. It is a type of antihistamine. Also called fexofenadine.

allergen    listen   (A-ler-jen)
A substance that causes an allergic response. Examples include pollen, molds, and certain foods.

allergic response    listen   (uh-LER-jik reh-SPONTS)
A hypersensitive immune reaction to a substance that normally is harmless or would not cause an immune response in most people. An allergic response may cause harmful symptoms such as itching or inflammation or tissue injury.

allogeneic    listen   (A-loh-jeh-NAY-ik)
Taken from different individuals of the same species. Also called allogenic.

allogeneic bone marrow transplantation    listen   (A-loh-jeh-NAY-ik bone MAYR-oh tranz-plan-TAY-shun)
A procedure in which a person receives stem cells (cells from which all blood cells develop) from a genetically similar, but not identical, donor.

allogeneic stem cell transplantation    listen   (A-loh-jeh-NAY-ik stem sel tranz-plan-TAY-shun)
A procedure in which a person receives blood-forming stem cells (cells from which all blood cells develop) from a genetically similar, but not identical, donor. This is often a sister or brother, but could be an unrelated donor.

allogenic    listen   (A-loh-JEH-nik)
Taken from different individuals of the same species. Also called allogeneic.

allograft    listen   (A-loh-graft)
The transplant of an organ, tissue, or cells from one individual to another individual of the same species who is not an identical twin.

allopathic medicine    listen   (A-loh-PA-thik MEH-dih-sin)
A system in which medical doctors and other healthcare professionals (such as nurses, pharmacists, and therapists) treat symptoms and diseases using drugs, radiation, or surgery. Also called biomedicine, conventional medicine, mainstream medicine, orthodox medicine, and Western medicine.

allopurinol    listen   (a-loh-PYOOR-rih-nol)
A drug that lowers high levels of uric acid (a byproduct of metabolism) in the blood caused by some cancer treatments.

Allovectin-7    listen   (A-loh-VEK-tin ...)
A substance that is being studied as a gene therapy agent in the treatment of cancer. It increases the ability of the immune system to recognize cancer cells and kill them.

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