Oncology & Cancer

50 years on, real progress in war against cancer

Since 1971, when the U.S. government made defeating cancer a goal and put major funding behind it, death rates for many cancers have plummeted, but some are increasing, according to a new American Cancer Society report.

Oncology & Cancer

COVID-19 vaccine effective in patients with lung cancer

Although the COVID-19 vaccines have been proven safe and effective in the general population, little is known about whether patients with lung cancer would develop a protective anti-spike antibody response because these patients ...

Oncology & Cancer

Lung cancer screening rates increase with access to Medicare

Lung cancer screening is recommended only for those who are at high risk for the disease—adults ages 50­–80 who smoke at least 20 packs a year—but even among members of that high-risk group, screening rates remain ...

Oncology & Cancer

Cancer survival rates are improving in Australia

Cancer survival rates in Australia are continuing to improve and the rate at which Australians are being diagnosed with cancer has been declining since 2008, according to a new report by the Australian Institute of Health ...

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