Glossary index
Medical terms A–Z
Browse medical definitions and meanings in the complete glossary, or choose a letter to narrow the list.
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The outer part of the adrenal gland (a small organ on top of each kidney).
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A small gland that makes steroid hormones, adrenaline, and noradrenaline.
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The inner part of the adrenal gland (a small organ on top of each kidney).
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Surgery to remove one or both adrenal glands (a small organ on top of each kidney).
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A hormone and neurotransmitter.
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Having to do with or made by the outer layer of the adrenal gland, which produces steroid hormones.
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A rare cancer that forms in the outer layer of tissue of the adrenal gland (a small organ on top of each kidney that makes steroid hormones, adrenaline, and noradrenaline to control heart rate…
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A rare cancer that forms in the outer layer of tissue of the adrenal gland (a small organ on top of each kidney that makes steroid hormones, adrenaline, and noradrenaline to control heart rate…
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A hormone made in the pituitary gland.
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A substance used to detect certain types of tumors, including pheochromocytomas and neuroblastomas.
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A drug that is used to treat many types of cancer and is being studied in the treatment of other types of cancer.
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A drug that is used to treat many types of cancer and is being studied in the treatment of other types of cancer.
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An inherited disorder marked by rapid aging that begins in early adolescence.
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An aggressive (fast-growing) type of T-cell non-Hodgkin lymphoma caused by the human T-cell leukemia virus type 1 (HTLV-1).
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A legal document that states the treatment or care a person wishes to receive or not receive if he or she becomes unable to make medical decisions (for example, due to being unconscious or in a coma).
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Cancer that has spread to other places in the body and usually cannot be cured or controlled with treatment.
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Malignant mesothelioma (cancer that forms in the lining of the chest or abdomen) that is stage II, stage III, or stage IV.
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A registered nurse who has additional education and training in how to diagnose and treat disease.
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Adverse Effect
/ AD-vers ih-FEKT /An unwanted or harmful outcome associated with a medication or intervention.
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An unexpected medical problem that happens during treatment with a drug or other therapy.