Lung Cancer

Ocular oncologist on the importance of regular eye exams

As an an ocular oncologist treating cancers of the eye, Renelle Lim, MD, sometimes fields questions about how to keep eyes safe from the sun. Doing so is important, but eye cancer is not the same as skin cancer, and any link ...

Jul 26, 2018
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Moon dust a health hazard?

(HealthDay)—Dust could pose a health hazard if astronauts start spending extended periods of time on the Moon, Mars or other airless planets, researchers say.

Aug 02, 2018
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Comprehensive pediatric CAR T guidelines developed

Almost one year after the U.S. Food and Drug Administration (FDA) approval of chimeric antigen receptor (CAR) T-cell therapy for children with acute lymphoblastic leukemia (ALL), researchers at The University of Texas MD ...

Aug 06, 2018
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NIH releases large-scale dataset of CT images

(HealthDay)—To help improve detection accuracy of lesions, the National Institutes of Health (NIH)'s Clinical Center has made available a large-scale dataset of 32,000 annotated lesions identified on computed tomography ...

Aug 03, 2018
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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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