Glossary index
Medical terms beginning with L
Browse medical definitions and meanings in the complete glossary, or choose a letter to narrow the list.
L terms
227 results-
A large organ located in the upper abdomen.
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Primary liver cancer is cancer that forms in the tissues of the liver.
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A blood test to measure the blood levels of certain substances released by the liver.
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Cancer that has spread from the original (primary) tumor to the liver.
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An image of the liver created on a computer screen or on film.
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A type of legal advance directive in which a person describes specific treatment guidelines that are to be followed by health care providers if he or she becomes terminally ill and cannot communicate.
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A substance being studied in the treatment of cancer.
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A substance being studied in the treatment of cancer.
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A substance that contains the metal platinum and may kill cancer cells by damaging their DNA and stopping them from dividing.
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A portion of an organ, such as the liver, lung, breast, thyroid, or brain.
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Surgery to remove a whole lobe (section) of an organ (such as the lungs, liver, brain, or thyroid gland).
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A substance that comes from a plant known as Indian tobacco, which is different from the tobacco used to make smoking products.
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Cancer that begins in the lobules (the glands that make milk) of the breast.
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A condition in which abnormal cells are found in the lobules of the breast.
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A small lobe or a subdivision of a lobe.
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A temporary loss of feeling in one small area of the body caused by special drugs or other substances called anesthetics.
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An invasive malignant cancer confined entirely to the organ where the cancer began.
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Treatment that affects cells in the tumor and the area close to it.
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The process of determining or marking the location or site of a lesion or disease.
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Restricted to the site of origin, without evidence of spread.