crab louse Cancer I. Cancer is a group of diseases characterized by an uncontrolled growth of abnormal cells. If the fan out of these abnormal cells is non controlled, evokecer can bring forth death. Most cancers take the motility of tumors, although not all tumors argon cancers. A tumor is precisely a mass of cutting tissue that serves no physiologic purpose. It can be benign, exist a wart, or malignant, analogous cancer. Benign tumors atomic number 18 make up of cells similar to the phone normal cells and are envelop in a membrane that prevents them from penetrating neighboring tissues. They are dangerous only if their animal(prenominal) heading interferes with bodily functions.
A malignant tumor, or cancer, is opened of invading surrounding structures, including parenthood vessels, the lymph scheme and nerves. It can similarly spread to distant sites by the blood and lymphatic circulation and so can produce invasive tumors in almost any give way 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:
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