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Cancer Essay

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Cancer
Cancer is one of the leading causes of death in the world today. Studies show that one in three people will suffer from some form of cancer in their lifetime. There are many different kinds of cancer that effect different parts of the body. Cancer is treated in various different ways. Some forms of cancer are curable, and some are not. Cancer usually comes from the formation of a tumor. Tumors form in the body when cells are produced unnecessarily. That is to say, that new cells are formed when they are not needed, and they group together to form a tumor. The tumor can be benign, which means that it is non-cancerous, or it can be malignant, which means that it is cancerous. If cells break away from a malignant tumor, they will enter the bloodstream, and spread throughout the body, damaging other parts of the body. The earliest written record regarding cancer is from 3000 BC in the Egyptian Edwin Smith Papyrus and describes cancer of the breast. Cancer however has existed for all of human history. Hippocrates (ca. 460 BC – ca. 370 BC) described several kinds of cancer, referring to them with the Greek word carcinos (crab or crayfish). This name comes from the appearance of the cut surface of a solid malignant tumor, with "the veins stretched on all sides as the animal the crab has its feet, whence it derives its name”. The Greek, Celsus (ca. 25 BC – 50 AD) translated carcinos into the Latin cancer, also meaning crab and recommended surgery as treatment. Galen (2nd century AD) disagreed with the use of surgery and re...

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