Lung Cancer

Cancer drugs get a new consumer guide

In a bid to inject clarity into the fast-moving, high-stakes world of cancer drugs, a task force of cancer doctors announced Monday that it has devised a decision-making aid to help physicians and their patients weigh the ...

Jun 23, 2015
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CT allows nonsurgical management of some lung nodules

People who have nonsolid lung nodules can be safely monitored with annual low-dose computed tomography (CT) screening, according to a new study published online in the journal Radiology. Researchers said the findings could ...

Jun 23, 2015
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Dynamic whole-body PET detects more cancer

Imaging lung cancer requires both precision and innovation. With this aim, researchers have developed a technique for clinical positron emission tomography (PET) imaging that creates advanced whole-body parametric maps, which ...

Jun 08, 2015
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Triple treatment keeps cancer from coming back

Lung cancer is the leading cause of cancer death worldwide, responsible for some 1.59 million deaths a year. That figure is due, in part, to the fact that the cancer often returns after what, at first, seems to be successful ...

Jun 03, 2015
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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. Worldwide, lung cancer is the most common cause of cancer-related death in men and women, and is responsible for 1.3 million deaths annually, as of 2004. The most common symptoms are shortness of breath, coughing (including coughing up blood), and weight loss.

The main types of lung cancer are small-cell lung cancer (SCLC), also called oat cell cancer, and non-small-cell lung cancer (NSCLC). The most common cause of lung cancer is long-term exposure to tobacco smoke. Nonsmokers account for 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.

Lung cancer may be seen on chest radiograph and computed tomography (CT scan). The diagnosis is confirmed with a biopsy. This is usually performed by bronchoscopy or CT-guided biopsy. Treatment and prognosis depend on the histological type of cancer, the stage (degree of spread), and the patient's general wellbeing, measured by performance status. Common treatments include surgery, chemotherapy, and radiotherapy. NSCLC is sometimes treated with surgery, whereas SCLC usually responds better to chemotherapy and radiation therapy. This is partly because SCLC often spreads quite early, and these treatments are generally better at getting to cancer cells that have spread to other parts of the body.

Survival depends on stage, overall health, and other factors, but overall 14% of people in the United States diagnosed with lung cancer survive five years after the diagnosis.

This text uses material from Wikipedia licensed under CC BY-SA

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