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 that control the growth and functions of the
cell. These cells eventually become abnormal growths and can be recognized as
not normal tissue. These traits are passed down as the cell reproduces therefore
spreading the cancer.
Neoplasms are generally classified into two groups: malignant and benign.
Malignant tumors, or abnormal tissue, grow more rapidly than benign tissue and
they invade normal tissue. Benign tissue is structured similar to normal tissue
while malignant tissue is abnormal and has an 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 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 the smoking of cigarettes. Some researchers have
stated that if Americans stopped smoking, lung-cancer deaths could disintegrate
within two decades. Stomach cancer is ...
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...e cancerous legions in the body. The second is radiation
therapy, which uses radiation to try and kill the tumor. One of the main
problems with that is not only does it kill cancerous tissue, it also kills
healthy ones. The third way to treat cancer is chemotherapy, which is treatment
by chemical agents. The chance of complete cure is not common but it is usually
used to increase the life of the carrier. The desired effect of treatment in
cancer patients is remission, where the cancer is gone from your body and if it
does not return within 5 years it is considered cured.
Right now the government is spending huge sums of money on cancer
research. They are continuously finding cures and finding better ways to treat
and deal with cancer. Research has come very far and helped many people fight
cancers. Thanks to all the work done, cancer is still a dreaded disease but is
now curable which gives many people faith in recovery.
Compton’s Encyclopedia(1992). Cancer . Chicago: Compton’s Learning Company
Encyclopedia Britannica(1992). Cancer. Chicago: Encyclopedia Brittanica, Inc.
American Cancer Society website(1996): http://www.cancer.org/acs.html
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