Lung cancer
hideLung cancer is a disease of uncontrolled cell growth in tissues of the lung. This growth may lead to metastasis, which is the invasion of adjacent tissue and infiltration beyond the lungs. The vast majority of primary lung cancers are carcinomas of the lung, derived from epithelial cells. Lung cancer, the most common cause of cancer-related death in men and the second most common in women (after breast cancer), is responsible for 1.3 million deaths worldwide annually. 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 carcinoma and non-small cell lung carcinoma. This distinction is important, because the treatment varies; non-small cell lung carcinoma (NSCLC) is sometimes treated with surgery, while small cell lung carcinoma (SCLC) usually responds better to chemotherapy and radiation. The most common cause of lung cancer is long-term exposure to tobacco smoke. The occurrence of lung cancer in nonsmokers, who account for as many as 15% of cases , is 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 via bronchoscopy or CT-guided biopsy. Treatment and prognosis depend upon the histological type of cancer, the stage (degree of spread), and the patient's performance status. Possible treatments include surgery, chemotherapy, and radiotherapy. With treatment, the five-year survival rate is 14%.
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News tagged with lung cancer
Secondhand smoke exposure in childhood increases lung cancer risk later in life
7 hours ago |
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Children exposed to secondhand cigarette smoke have an increased risk of developing lung cancer in adulthood, even if they never smoked.
Scientists discover genetic pattern that indicates early-stage lung cancer
Dec 01, 2009 |
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Wistar Institute researchers and collaborators from the University of Pennsylvania and New York University have identified immune system markers in the blood which indicate early-stage lung tumors in people at high risk for ...
Study shows modest improvement in advanced lung cancer overall survival rates
Dec 01, 2009 |
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Research released in the December 2009 issue of the Journal of Thoracic Oncology sought to determine whether the survival improvement among patients with metastatic lung cancer has improved over the last two decades as rep ...
Common pain relief medication may encourage cancer growth
Nov 18, 2009 |
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Although morphine has been the gold-standard treatment for postoperative and chronic cancer pain for two centuries, a growing body of evidence is showing that opiate-based painkillers can stimulate the growth and spread of ...
Drug shrinks lung cancer tumors in mice
Nov 10, 2009 |
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(PhysOrg.com) -- A potential new drug for lung cancer has eliminated tumours in 50% of mice in a new study published today in the journal Cancer Research. In the animals, the drug also stopped lung cancer ...
Researchers link health-care debate to risk of dying in US and Europe
Nov 06, 2009 |
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The current health care debate in the United States is complicated. Trade-offs between heath care expenditures, lifestyle choices and life expectancy have been suggested but seldom clearly demonstrated. The U.S. spends on ...
Cancer patients and doctors report drug side effects differently
Nov 17, 2009 |
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In clinical trials for cancer, it is standard for clinicians rather than patients to report adverse symptom side effects from treatments, such as nausea and fatigue. At present, patient self-reporting, although important, ...
PET imaging response a prognostic factor after thoracic radiation therapy for lung cancer
Nov 06, 2009 |
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A rapid decline in metabolic activity on a PET scan after radiation therapy for non-small cell lung cancer is correlated with good local tumor control, according to a study presented by researchers at Thomas Jefferson University ...
New treatment option emerging for some with early stage lung cancer
Nov 04, 2009 |
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Patients with early stage, non-small cell lung cancer who are not able to undergo surgery, now have a highly effective treatment option. Physicians say that option, radical stereotactic radiosurgery performed with CyberKnife, ...
Cancer patients want honesty, compassion from their oncologist
Nov 04, 2009 |
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What do patients want from their radiation oncologists? The most significant preference is that more than one-third of female cancer patients (37 percent) prefer to have their hands held by their radiation oncologists during ...
PET imaging before radiation not ideal for determining boost radiation doses
Nov 03, 2009 |
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(PHILADELPHIA) Positron emission tomography (PET) imaging of non-small cell lung cancer prior to receiving radiation therapy should not be the basis for determining areas that may benefit from higher doses of radiation, according ...
Intervals between lung cancer diagnosis and treatment displays a health care disparity
Nov 03, 2009 |
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Research published in the November 2009 issue of the Journal of Thoracic Oncology has found that intervals between lung cancer suspicion, diagnosis and treatment may be attributed to health care system discrepancies.
