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Glossary

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  • HDAC inhibitor

    (...in-HIH-bih-ter)

    A substance that causes a chemical change that stops tumor cells from dividing. HDAC inhibitors are being studied in the treatment of cancer. Also called histone deacetylase inhibitor.

  • HICKMAN® catheter

    Soft plastic catheters that are surgically placed in one of the neck veins and advanced to the opening of the heart in order to easily administer intravenous solutions and to obtain blood for testing.

  • HIV

    The cause of acquired immunodeficiency syndrome (AIDS). Also called human immunodeficiency virus.

  • HIV test

    A test to check for human immunodeficiency virus (HIV) infection.

  • HLA

    A type of molecule found on the surface of most cells in the body. HLAs play an important part in the body's immune response to foreign substances. They make up a person’s tissue type, which varies from person to person. HLA tests are done before a donor stem cell or organ transplant, to find out if tissues match between the donor and the person receiving the transplant. Also called human leukocyte antigen and human lymphocyte antigen.

  • Hair Follicle

    (… FAH-lih-kul)

    A shaft or opening on the surface of the skin through which hair grows.

  • Harvest

    The removal of a donor's bone marrow prior to bone marrow transplant.

  • Head and neck cancer

    (... KAN-ser)

    Cancer that arises in the head or neck region (in the nasal cavity, sinuses, lips, mouth, salivary glands, throat, or larynx [voice box]).

  • Health History

    (helth HIH-stuh-ree)

    A record of information about a person’s health. A personal health history may include information about allergies, illnesses, surgeries, immunizations, and results of physical exams and tests. It may also include information about medicines taken and health habits, such as diet and exercise. A family health history includes health information about a person’s close family members (parents, grandparents, children, brothers, and sisters). This includes their current and past illnesses. A family health history may show a pattern of certain diseases in a family. Also called medical history.

  • Healthcare provider

    (HELTH-kayr proh-VY-der)

    A licensed person or organization that provides healthcare services.