Lung Cancer

Later age recommended for first screening mammogram

Among the changes in the American Cancer Society's updated breast cancer screening guideline is that women with an average risk of breast cancer should undergo regular, annual screening mammography beginning at age 45 years, ...

Oct 20, 2015
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Study examines cancer-care outcomes among US hospitals

Decades of research have shown that cancer survival outcomes can vary widely depending on where patients receive care. But efforts to rank hospitals by long-term survival rates have been hindered by the readily available ...

Oct 08, 2015
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Metastatic breast cancer cells turn on stem cell genes

It only takes seconds: one cancerous cell breaks off from a tumor, slips into the bloodstream and quickly lodges elsewhere in the body. These colonizers may bloom into deadly metastatic cancer right away or lie dormant for ...

Sep 23, 2015
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Armed malaria protein found to kill cancer cells

A new type of cancer therapy based on seemingly unrelated elements of malaria and cancer is showing promise for development. Kairos Therapeutics, a Vancouver-based biotech company spun-out of The Centre for Drug Research ...

Oct 13, 2015
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New drug targets the source of cancer renewal

A new class of drug that reduces cancer recurrence and spread may soon be available, with South Australian biopharmaceutical company Bionomics having passed review by the US Food and Drug Administration (FDA) with their product ...

Sep 25, 2015
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DNA methylation test might predict breast cancer relapse

Every woman successfully treated for breast cancer lives with the knowledge that it could come back. New research published today in the journal Clinical Epigenetics may lead to a simple blood test to determine the risk of ...

Sep 17, 2015
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Advocating for raising the smoking age to 21

Henry Ford Hospital pulmonologist Daniel Ouellette, M.D., who during his 31-year career in medicine has seen the harmful effects of smoking on his patients, advocates for raising the smoking age to 21.

Oct 22, 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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