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Glossary of Medical Terms

Search the Glossary of Medical Terms

arginine butyrate

A substance that is being studied in the treatment of cancer.

( AR-jih-neen BYOO-tuh-rayt )

argon beam coagulator ablation

A procedure that destroys tissue with an electrical current passed through a stream of argon gas to the tissue. It is used to treat endometriosis and other conditions, and to stop blood loss during surgery.

( AR-gon beem coh-A-gyuh-LAY-ter a-BLAY-shun )

Arimidex

A drug used to treat certain types of breast cancer in postmenopausal women. It is also being studied in the treatment of other types of cancer. Arimidex lowers the amount of estrogen made by the body. This may stop the growth of cancer cells that need estrogen to grow. Arimidex is a type of nonsteroidal aromatase inhibitor. Also called anastrozole.

( uh-RIH-mih-dex )

Arixtra

A drug used to prevent blood clots from forming inside blood vessels in the leg. It is being studied in the prevention of blood clots in some cancer patients, including women having surgery for cancer of the reproductive tract. It is a type of anticoagulant. Also called fondaparinux sodium.

( uh-RIK-struh )

ARMD

A condition in which there is a slow breakdown of cells in the center of the retina (the light-sensitive layers of nerve tissue at the back of the eye). This blocks vision in the center of the eye and can cause problems with activities such as reading and driving. ARMD is most often seen in people who are over the age of 50. Also called age-related macular degeneration, AMD, and macular degeneration.

armodafinil

A drug that is used to treat certain sleep disorders, such as narcolepsy. It makes patients feel more alert and awake. It is also being studied in the treatment of insomnia and fatigue in patients treated for cancer. Armodafinil acts in a part of the brain that controls sleep and wakefulness. It is a type of wakefulness-promoting agent. Also called Nuvigil.

( ar-moh-DA-fih-nil )

ARMS

A soft tissue tumor that is most common in older children and teenagers. It begins in embryonic muscle cells (cells that develop into muscles in the body). It can occur at many places in the body, but usually occurs in the trunk, arms, or legs. Also called alveolar rhabdomyosarcoma.

Aromasin

A drug used to treat postmenopausal women with advanced breast cancer or early-stage breast cancer that is estrogen receptor positive (ER+). It is used in patients whose cancer has already been treated with tamoxifen. It is also being studied in the treatment of other types of cancer. Aromasin lowers the amount of estrogen made by the body. This may stop the growth of cancer cells that need estrogen to grow. Aromasin is a type of aromatase inhibitor. Also called exemestane.

( uh-ROH-muh-sin )

aromatase inhibitor

A drug that prevents the formation of estradiol, a female hormone, by interfering with an aromatase enzyme. Aromatase inhibitors are used as a type of hormone therapy for postmenopausal women who have hormone-dependent breast cancer.

( uh-ROH-muh-tays in-HIH-bih-ter )

aromatherapist

A person who practices a type of complementary medicine called aromatherapy. This therapy uses plant oils that give off strong, pleasant smells to promote relaxation and a sense of well-being. The plant oils are usually inhaled or put on the skin using wet cloths, baths, or massage.

( uh-ROH-muh-THAYR-uh-pist )

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