Lung Cancer

Opinion: Can a dying patient be a healthy person?

The news was bad. Mimi, a woman in her early 80s, had been undergoing treatment for lymphoma. Her husband was being treated for bladder cancer. Recently, she developed chest pain, and a biopsy showed that she had developed ...

Feb 09, 2017
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Trading in the scalpel for a sharper blade

Losing a breast or a lung to cancer leaves a scar, both physical and emotional. But even a biopsy to determine if a tumor is cancerous, or to track a tumor's response to drugs, brings short-term pain and can miss signs of ...

Feb 22, 2017
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Tighten the grip on metastasis

Metastasis is the major cause of cancer-related death and its appearance remains a phenomenon that is difficult to predict and manage. We now know that, prior to the arrival of the cancer cells, tumours prepare the ground ...

Mar 17, 2017
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Detecting blood clot risk using biomarkers

Cancer is one of the hardest medical conditions to overcome, and for those who do so, the battle often does not stop at remission. Many cancers predispose patients to develop blood clots, particularly patients who are diagnosed ...

Mar 15, 2017
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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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