What Is Tumor?

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Tumor describes an abnormal growth of body cells due to an excessive cell proliferation. An excessive cell proliferation refers to a sudden, rapid and extreme expansion or procreation of body cells, which are the basic units of all living things. (1,2,3). According to Cancer Research UK, in 2012, 14 million new cases and 8, 2 million deaths reported from global tumors (4). Generally, the human body consists of millions of cells that grow, split and die in a tightly organized procedure. Normally, these cells only split when the body needs them to alter dilapidated and decaying cells or to rebuild injured ones. Dilapidated and decaying cells are the worn-out, damaged and aged cells that do not have the ability to work effectively

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