NCCN Cancer Centers
| The National Comprehensive Cancer Network (NCCN) is a not-for-profit alliance of 23 of the world’s leading cancer centers. We are dedicated to improving the quality and effectiveness of care provided to people with cancer. |
Glossary of terms used on this site
| Term | Definition |
|---|---|
| Androgen ablation |
Treatment to suppress or block the production or action of male hormones. This is done by having the testicles removed, by taking female sex hormones, or by taking drugs called antiandrogens. Also called androgen suppression and androgen deprivation. |
| Androgen deprivation |
Treatment to suppress or block the production or action of male hormones. This is done by having the testicles removed, by taking female sex hormones, or by taking drugs called antiandrogens. Also called androgen ablation and androgen suppression. |
| Androgen-independent |
Describes the ability of tumor cells to grow in the absence of androgens (hormones that promote the development and maintenance of male sex characteristics). Many early prostate cancers require androgens for growth, but advanced prostate cancers are often androgen-independent. |
| Anemia |
A condition in which the number of red blood cells is below normal. |
| Anesthesia |
Drugs or substances that cause loss of feeling or awareness. Local anesthetics cause loss of feeling in a part of the body. General anesthetics put the person to sleep. |
| Angioimmunoblastic T-cell lymphoma |
An aggressive (fast-growing) type of T-cell non-Hodgkin lymphoma marked by enlarged lymph nodes and hypergammaglobulinemia (increased antibodies in the blood). Other symptoms may include a skin rash, fever, weight loss, or night sweats. |
| Angiosarcoma |
A type of cancer that begins in the cells that line blood vessels or lymph vessels. Cancer that begins in blood vessels is called hemangiosarcoma. Cancer that begins in lymph vessels is called lymphangiosarcoma. |
| ANLL |
A quickly progressing disease in which too many immature white blood cells (not lymphocytes) are found in the blood and bone marrow. Also called acute nonlymphocytic leukemia, acute myelogenous leukemia, acute myeloblastic leukemia, acute myeloid leukemia, and AML. |
| Antiandrogen therapy |
Treatment with drugs used to block production or interfere with the action of male sex hormones. |
| Antibiotic |
A drug used to treat infections caused by bacteria and other microorganisms. |
| Antibody |
A type of protein made by plasma cells (a type of white blood cell) in response to an antigen (foreign substance). Each antibody can bind to only one specific antigen. The purpose of this binding is to help destroy the antigen. Antibodies can work in several ways, depending on the nature of the antigen. Some antibodies destroy antigens directly. Others make it easier for white blood cells to destroy the antigen. |
| Antibody therapy |
Treatment with an antibody, a substance that can directly kill specific tumor cells or stimulate the immune system to kill tumor cells. |
| Anticarcinogenic |
Having to do with preventing or delaying the development of cancer. |
| Antidepressant |
A drug used to treat depression. |
| Antiemetic |
A drug that prevents or reduces nausea and vomiting. |
Glossary
