lymphangiogram(lim-FAN-jee-o-gram) An x-ray of the lymphatic system. A dye is injected into a lymphatic vessel and travels throughout the lymphatic system.
lymphangiography(lim-fan-jee-AH-gruh-fee) An x-ray study of the lymphatic system. A dye is injected into a lymphatic vessel and travels throughout the lymphatic system.
lymphangiosarcomaA type of cancer that begins in the cells that line lymph vessels.
lymphatic basin(lim-FA-tik BAY-sin) A group of lymph nodes that receives and filters lymph that flows from a certain area of the body.
lymphatic fluid(lim-FA-tik ...) The clear fluid that travels through the lymphatic system and carries cells that help fight infections and other diseases.
Lymphatic mapping(lim-FA-tik ...) The use of dyes and radioactive substances to identify lymph nodes that may contain tumor cells. Also called lymph node mapping.
Lymphatic system(lim-FA-tik SIS-tem) The tissues and organs that produce, store, and carry white blood cells that fight infections and other diseases.
lymphatic vessel(lim-FA-tik ...) A thin tube that carries lymph (lymphatic fluid) and white blood cells through the lymphatic system. Also called lymph vessel.
Lymphedema(LIM-fuh-DEE-muh) A condition in which excess fluid collects in tissue and causes swelling.
lymphoblast(LIM-foh-BLAST) A lymphocyte that has gotten larger after being stimulated by an antigen.
lymphoblastic(LIM-foh-BLAS-tik) Refers to lymphoblasts (a type of immature white blood cell).
lymphoblastic lymphoma(LIM-foh-BLAS-tik lim-FOH-muh) An aggressive (fast-growing) type of non-Hodgkin lymphoma in which too many lymphoblasts (immature white blood cells) are…
Lymphocyte(LIM-foh-site) A type of white blood cell. Lymphocytes have a number of roles in the immune system, including the production of antibodies and other…
lymphocytic(LIM-foh-SIH-tik) Refers to lymphocytes (a type of white blood cell).
lymphocytic leukemiaA type of cancer in which the bone marrow makes too many lymphocytes (white blood cells).
lymphoepithelioma(LIM-foh-EH-pih-THEE-lee-OH-muh) A type of cancer that begins in the tissues covering the nasopharynx (the upper part of the throat behind the nose).
lymphography(lim-FAH-gruh-fee) An x-ray study of lymph nodes and lymphatic vessels made visible by the injection of a special dye.
Lymphoid(LIM-foyd) Referring to lymphocytes, a type of white blood cell. Also refers to tissue in which lymphocytes develop.
lymphokineGeneric name for proteins that are released by lymphocyte s to act on other cells involved in the immune response.
lymphokine-activated killer cellA white blood cell that is stimulated in a laboratory to kill tumor cells. Also called LAK cell.
lymphoma(lim-FOH-muh) Cancer that begins in cells of the immune system. There are two basic categories of lymphomas.
lymphomatoid granulomatosis(lim-FOH-muh-toyd GRAN-yoo-loh-muh-TOH-sis) Destructive growth of lymph cells, usually involving the lungs, skin, kidneys, and central nervous system.
lymphoplasmacytic lymphoma(LIM-foh-plaz-muh-SIH-tik lim-FOH-muh) An indolent (slow-growing) type of non-Hodgkin lymphoma marked by abnormal levels of IgM antibodies in the blood…
lymphopoietin-1(LIM-foh-POY-eh-tin...) One of a group of related proteins made by leukocytes (white blood cells) and other cells in the body.
lymphoproliferative disorder(LIM-foh-pruh-LIH-feh-RUH-tiv dis-OR-der) A disease in which cells of the lymphatic system grow excessively.
lymphosarcomaAn obsolete term for a malignant tumor of lymphatic tissue.
lymphoscintigraphy(LIM-foh-sin-TIH-gruh-fee) A method used to identify the sentinel lymph node (the first draining lymph node near a tumor).
Lynch syndromeAn inherited disorder in which affected individuals have a higher-than-normal chance of developing colorectal cancer and certain other types of cancer…
lynxA World Wide Web browser that provides a character-based user interface to hypertext-based information.
Lyrica(LEER-ih-kuh) A drug used to treat nerve pain caused by diabetes or herpes zoster infection and certain types of seizures.
LysimeterAn isolated block of soil, usually undisturbed and in situ, for measuring the quantity, quality, or rate of water movement through or from the soil.
lysis(LY-sis) In biology, lysis refers to the breakdown of a cell caused by damage to its plasma (outer) membrane.
lysogenyA condition in which a bacteriophage genome (pro-phage ) survives within a host bacterium, either as part of the host chromosome or as part of an…
lysosomeA sac-like compartment inside a cell that has enzymes that can break down cellular components that need to be destroyed.
lysozymeA naturally occurring enzyme extracted from egg white protein and other animal and plant sources, which attacks the cell wall of gram-positive bacteria…