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BookmarkTumor (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 ... > read more
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 ... > read more
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 ... > read more
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, ... > read more
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.
