Lung Cancer
Lung cancer is a disease characterized by uncontrolled cell growth in tissues of the lung. If left untreated, this growth can spread beyond the lung in a process called metastasis into nearby tissue and, eventually, into other parts of the body. Most cancers that start in lung, known as primary lung cancers, are carcinomas that derive from epithelial cells. The main types of lung cancer are small-cell lung carcinoma (SCLC), also called oat cell cancer, and non-small-cell lung carcinoma (NSCLC). The most common cause of lung cancer is long-term exposure to tobacco smoke, which causes 80–90% of lung cancers. Nonsmokers account for 10–15% of lung cancer cases, and these cases are often attributed to a combination of genetic factors, radon gas, asbestos, and air pollution including secondhand smoke.
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Famous quotes containing the words lung cancer, lung and/or cancer:
“Dylan used to sound like a lung cancer victim singing Woody Guthrie. Now he sounds like a Rolling Stone singing Immanuel Kant.”
—Also quoted in Robert Shelton, No Direction Home, ch. 2, “Prophet Without Honor” (1986)
“Lord, confound this surly sister,
Blight her brow with blotch and blister,
Cramp her larynx, lung and liver,
In her guts a galling give her.”
—J.M. (John Millington)
“I wish more and more that health were studied half as much as disease is. Why, with all the endowment of research against cancer is no study made of those who are free from cancer? Why not inquire what foods they eat, what habits of body and mind they cultivate? And why never study animals in health and natural surroundings? why always sickened and in an environment of strangeness and artificiality?”
—Sarah N. Cleghorn (1976–1959)