Tumor (American English) or tumour (British English) originally means "swelling", and is sometimes still used with that meaning.
Tumor meaning swelling is one of the five classical characteristics of inflammation.
However, the term is now primarily used to denote abnormal growth of tissue.
This growth can be either malignant or benign.
For more information about the topic Tumor, read the full article at Wikipedia.org, or see the following related articles:
Metastasis Metastasis is the spread of cancer from its primary site to other places in the body (e.g., brain, liver). Cancer cells can break away from a primary ... >
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Tumor suppressor gene A tumor suppressor gene is a gene that reduces the probability that a cell in a multicellular organism will turn into a tumor cell. A mutation or ... >
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Glioma A glioma is a type of primary central nervous system (CNS) tumor that arises from glial cells. The most common site of involvement of a glioma is the ... >
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Brain tumor A brain tumor is any intracranial mass created by an abnormal and uncontrolled growth of cells either normally found in the brain itself: neurons, ... >
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Carcinogen In pathology, a carcinogen is any substance or agent that promotes cancer. Carcinogens are also often, but not necessarily, mutagens or ... >
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Renal cell carcinoma Renal cell carcinoma, also known by the eponym Grawitz tumor, is the most common form of kidney cancer arising from the renal tubule. It is the most ... >
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Salivary gland The salivary glands produce saliva, which keeps the mouth and other parts of the digestive system moist. It also helps break down carbohydrates (with ... >
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Heat shock protein Heat shock proteins (HSP) are a group of proteins the expression of which is increased when the cells are exposed to elevated ... >
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Leukemia Leukemia (leukaemia in Commonwealth English) is a cancer of the blood or bone marrow characterized by an abnormal proliferation of blood cells, ... >
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Lymphoma Lymphoma is a variety of cancer that originates in lymphocytes or, more rarely, of histiocytes. Collectively, these cell types form the ... >
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Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Tumor at Wikipedia.org. See the Wikipedia copyright page for more details. Editor's Note: This article is not intended to provide medical advice, diagnosis or treatment.
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