Cancer

Cancer Cancer I. Cancer is a group of diseases characterized by an uncontrolled growth of abnormal cells. If the extend of these abnormal cells is not controlled, bearcer can suit death. Most cancers take the cause of tumors, although not all tumors are cancers. A tumor is wholly a mass of new tissue that serves no physiological purpose. It can be benign, equal a wart, or malignant, equivalent cancer. Benign tumors are made up of cells similar to the band normal cells and are enclosed in a tissue layer that prevents them from penetrating neighboring tissues. They are dangerous only if their animal(prenominal) fore lot interferes with bodily functions.

A malignant tumor, or cancer, is opened of invasive surrounding structures, including blood vessels, the lymph system and nerves. It can similarly spread to distant sites by the blood and lymphatic circulation and so can produce invasive tumors in almost any part of the body. In 1997, an estimated 1,359,150 people in the United...If you want to position a full essay, order it on our website: BestEssayCheap.com

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