LYCOS RETRIEVER 
Lung: Lung Cancer
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Lung cancer is among the most common cancers in the Western world. In the United States, there were approximately 170,000 new cases of lung cancer in 1999. Since the mid-1990s, about 150,000 Americans have died each year from this disease. Lung cancer is the leading category of cancer death in men, and—since the late 1980s—it has surpassed breast cancer as the leading category of cancer death in women. Findings from the U.S. National Cancer Institute (NCI) indicate that the upward trend in cancer-related death is due to the rapidly increasing rate of lung cancer mortality.
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Lung cancer is a different disease in women than it is in men, researchers have said. The female hormone oestrogen is partly to blame, according to a team at Northwestern University, Illinois. Rates of lung cancer in women have increased significantly in recent decades while those for men have remained stable. The research in the Journal of the American Medical Association ... noted the effect of more women smoking. Female smokers have a greater chance of developing lung cancer, and a higher risk of developing adenocarcinoma, which is the most common form of the disease. But women also have better survival rates, the researchers said.Numbers of women smoking continue to increase, while rates among men are falling.
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Lung cancer can have a variety of symptoms including coughing or wheezing, shortness of breath, recurring respiratory infections, and more. It is important to remember that symptoms rarely occur until the later stage of lung cancer, when cure is far less likely. For more information, visit Symptoms of Lung Cancer.
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The Lung Cancer and Cigarette Smoking Web Page by Frederic W. Grannis, Jr., M.D., has a significant amount of additional information, including data on the death rate in excess of 160,000 in 1998 alone. The site ... has numerous links to sites with more details.
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Lung cancer accounts for the highest number of cancer deaths worldwide, in both men and women. An estimated 213,380 new cases of cancer involving the lung or bronchus are expected in the U.S. in 2007, accounting for about 15 percent of total cancer diagnoses. An estimated 160,390 deaths, accounting for about 29 percent of all cancer deaths, are expected to occur in 2007. Since 1987, more women have died each year from lung cancer than from breast cancer. Lung cancer was the third most common cancer for men and the fifth most common cancer for women in Japan in 2000. The five-year survival rate for lung cancer is only 15 percent.
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Lung cancer is similar to many other forms of cancer. Cancer, which is the uncontrollable division and replication of cells, usually originates in one part of the body. If left untreated most cancer, including lung cancer, may spread, or metastasize, to other parts of the body. This spread of lung metastases makes the cancer much more difficult to treat. Even if other organs are affected by lung metastases, the lung cancer is still considered to be cancer of the organ where it was first found. For example, if the disease initially develops in the lungs but lung metastases spreads it the brain, lymph nodes, or pancreas, it is still considered to be lung cancer.
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Lung Cancer