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 deficiency. Also known as citrovorum factor and Wellcovorin.
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- Leuk-
Prefix meaning white, as in leukemia. Leuk-and leuko-, the form used before a consonant, come from the Greek “leukos” meaning white.
- Leukemia
Cancer of the blood cells. Strictly speaking, leukemia should refer only to cancer of the white blood cells (leukocytes), but in practice it can apply to malignancy of any cellular element in the blood or bone marrow, as in red cell leukemia (erythroleukemia). Treatment may involve chemo’therapy, radiation therapy, biological therapy, and/or bone marrow transplantation. […]
- 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).
- Leukemia, accelerated phase of
Chronic myelogenous leukemia that is progressing. In this phase, 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.
- Leukemia, acute lymphoblastic
A form of leukemia that has a sudden onset and is characterized by the presence in the blood and bone marrow of large numbers of unusually immature white blood cells that are precursors of lymphocytes (lymphoblasts). Lymphoblasts are rarely seen in the blood under normal circumstances. Abbreviated ALL. Treatment for ALL may include chemotherapy, radiation, […]