Lung Canser Biography
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Lung cancer and smoking often, but not always, go hand in hand. As lung cancer stages advance, lung cancer symptoms include coughing, wheezing, shortness of breath, and bloody mucus. Treatment includes surgery, chemotherapy, and/or radiation. Genentech BioOncology is dedicated to advancing the science of lung cancer therapy through comprehensive research and education. Lung cancers typically arise from epithelial linings of air passages.1 The presence of lung tumors may be confirmed from a variety of sources, including the sputum, pleural fluid, or other lungsamples.2 Depending upon the cellular morphology under a microscope, lung cancer is broadly divided into 2 main types: small cell lung cancer (SCLC) and non-small cell lung cancer Types of Lung Cancer SCLC: Approximately 13% of lung cancers belong to the SCLC category. This type of lung cancer is a more aggressive form of the disease and tends to spreadquickly2 NSCLC: A vast majority of lung cancers belong to the category.2 Based on histologic features, NSCLC is further divided into 3 main subtypes, namely adenocarcinoma, squamous cell carcinoma, and large cell carcinoma2 Squamous cell carcinomas typically arise from thin, flat squamous cells; in contrast, adenocarcinomas arise from mucus-secreting cells that line thealveoli. Lung Cancer Demographic Statistics Lung cancer is the second most common cancer in both men (second only to prostate cancer) and women (second only to breast cancer), accounting for ≈15% of all new cancers diagnosed1 Lung cancer mainly afflicts older people, with a reported average age of 71 years at the time of diagnosis; fewer than 3% of lung cancers are detected in people younger than 45 years1 The American Cancer Society estimates that in 2010, 222,520 new cases of lung cancer were diagnosed in the United States (116,750 men and 105,770 women).1Studies indicate that African American men are ≈40% more likely to develop lung cancer than Caucasian men1 More people succumb to lung cancer than to colon, breast, and prostate cancerscombined.1 Current estimates indicate that more than 400,000 lung cancer survivors live in the United States today1 The American Cancer Society estimates 157,300 lung cancer deaths to occur annually (86,220 men and 71,080 women), accounting for ≈28% of all cancer deaths1,3, Lung Cancer Epidemiology Several risk factors have been identified that make people more susceptible to lungcancer1: Smoking is a leading risk factor for lung cancer, accounting for ≈87% of lung cancerdeaths.
Second-hand smoke also remains a major cause for concern, accounting for ≈3,000 lung cancer deaths each year1 People who quit smoking before they reach age 50 reduce their risk of dying from lung cancer by half in the next 15 years, compared with those who continue to smoke1 Additional risk factors for lung cancer include exposure to asbestos fibers, diesel exhaust, radiation, and high levels of arsenic in the drinking water1 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, and exposure to; radon gas, asbestos, and air pollution
including second-hand smoke. Lung cancer may be seen on chest radiographs and
computed tomography(CT) scans. The diagnosis is confirmed by biopsy which is
usually performed bybronchoscopy or CT-guidance. Treatment and long-term
outcomes depend on the type of cancer, the stage (degree of spread), and the
person's overall health, measured byperformance status. Common treatments include surgery, chemotherapy, and radiotherapy.
NSCLC is sometimes treated with surgery, whereas SCLC usually responds better
to chemotherapy and radiotherapy. Overall, 15% of people in the United States
diagnosed with lung cancersurvive five years after the diagnosis. Outcomes are worse in the developing world.
Worldwide, lung cancer is the most common cause of cancer-related death in men
and women, and is responsible for 1.38 million deaths annually, as of 2008.
Lung Canser Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker
Lung Canser Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker
Lung Canser Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker
Lung Canser Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker
Lung Canser Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker
Lung Canser Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker
Lung Canser Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker
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