Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «L»:
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Leu
Leu: Leucine. See also: Amino acid symbols....
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Leucemia
Leucemia: A different spelling of leukemia,
cancer of the blood cells. The growth and development of the blood
cells are abnormal. Strictly speaking, leukemia should refer only to
cancer of the white blood cells (the leukocytes) but in practice it
can apply to malignancy of any cellular element ...
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Leucine
Leucine: An amino acid, one of the 20 building blocks of protein. A dietary essential amino acid, leucine is needed for optimal growth in childhood. It is one of the three branched-chain amino acids. Symbol: Leu....
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Leucovorin
Leucovorin: Folinic acid, the active form of folic acid in the body. Used as an antidote to protect normal cells from high doses of the anticancer drug methotrexate and to increase the antitumor effects of fluorouracil (5-FU) and tegafur-uracil. Also used to prevent or treat anemia due to folic acid...
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Leuk-
Leuk-: Prefix meaning white, as in leukemia. Leuk-and leuko-, the form used before a consonant, come from the Greek "leukos" meaning white....
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Leukemia
Leukemia: Cancer of the blood cells. The
growth and development of the blood cells are abnormal. Strictly
speaking,
leukemia should refer only to cancer of the white blood cells (the
leukocytes) but in practice it can apply to malignancy of any
cellular element in the blood or bone marrow, as ...
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Leukemia, accelerated phase of
Leukemia, accelerated phase of: Refers to chronic myelogenous
leukemia (CML) that is progressing. The number of immature, abnormal white blood cells in the bone marrow and blood is higher than in the chronic phase but not as high as in the blast phase....
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Leukemia, acute
Leukemia, acute: Cancer of the blood cells (leukemia) that progresses rapidly, as opposed to chronic leukemia which progresses slowly. The two major types of acute leukemia are acute lymphoblastic leukemia (ALL) and acute myelocytic leukemia (AML)....
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Leukemia, acute lymphoblastic
Leukemia, acute lymphoblastic: See: Acute lymphoblastic leukemia....
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Leukemia, acute lymphocytic
Leukemia, acute lymphocytic: See: Acute lymphoblastic leukemia....
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Leukemia, acute myelogenous
Leukemia, acute myelogenous: Abbreviated AML. Also called acute myeloid leukemia or acute nonlymphocytic leukemia (ANLL). A quickly progressive malignant disease in which there are too many immature blood-forming cells in the blood and bone marrow, the cells being specifically those destined to give...
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Leukemia, acute myeloid
Leukemia, acute myeloid: A quickly progressive malignant disease in which there are too many immature blood-forming cells in the blood and bone marrow, the cells being specifically those destined to give rise to the granulocytes or monocytes, both types of white blood cells that fight infections. In...
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Leukemia, acute nonlymphocytic
Leukemia, acute nonlymphocytic: Abbreviated ANLL. More commonly called acute myeloid leukemia (AML). A quickly progressive malignant disease in which there are too many immature blood-forming cells in the blood and bone marrow, the cells being specifically those destined to give rise to the granuloc...
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Leukemia, blastic phase of
Leukemia, blastic phase of: A stage in which 30
percent or more of the cells in the bone marrow or blood
are blast cells, which may form tumors....
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Leukemia, chronic lymphocytic
Leukemia, chronic lymphocytic: The most common form of leukemia in adults, in which the lymphocytes may look fairly normal but are not fully mature and do not deal effectively with infection. The malignant cells are found in the blood and bone marrow, collect in and enlarge the lymph nodes, and may ...
