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Cancer 4 - School Essays

Cancer 4


Right now, cancer is one of the most feared diseases in the world. In the early 1990s almost 6 million new cancer cases developed and more than 4 million deaths from cancers occurred. Also more than one-fifth of all deaths were caused by cancer and it has been predicted, by the American Cancer Society, that about 33% of Americans will eventually develop this disease. This is a huge disease that is killing people all over the world.
The field of cancer study is called Oncology. The government has spent billions of dollars on research of this fatal disease. Cancer is the most aggressive disease of a larger class known as neoplasms. Neoplasms do not fully comply with the parts of the cell ...

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unstructured appearance. Of greater importance, benign tissue does not metastasize, or begin to grow in other sites, like malignant tumors do. Cancer always refers to metastasized tumors but the term tumor is not always necessarily cancer. A tumor is any living tissue that is #1 distinguishable as abnormal living tissue.
After a cancer forms, it can also change from a benign to a malignant state, therefore making the cell grow at a more rapid rate. The development of the cell starts when it forms notable abnormalities in chromosomes and then multiplies exceedingly. Then metastasis usually occurs and generally causes the death of the host.
There are many different cancers, which form on just about all parts of the body. In the US, skin cancer is the most common cancer, then prostate cancers in males, and then breast cancer in women. Leukemia is clearly the dominant cancer in children. The number one killing cancer in the world today is lung cancer, mostly caused by ...

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of estrogen, which is marked as a female hormone, can increase the chances of getting a cancer of the uterus (in women). Aflatoxin B is a substance produced by the mold Aspergillus that causes a number of cancer, but generally liver cancer. Many carcinogens have not been discovered, but research is being done to discover other carcinogens to keep people aware and safe.
There are also many different biological agents, which cause cancers. The most common biological agents are the oncogenic viruses that commonly bring about the formation of neoplasms in some smaller animals. Also some of these viruses are thought to cause human cancers, and one has even been proven to cause leukemia. ...

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PAPER DETAILS
Added: 8/6/2005 04:25:07 AM
Category: Science & Nature
Type: Free Paper
Words: 1512
Pages: 6

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