Cancer

Rate of decline of cardiovascular deaths slows in US

In a study published online by JAMA Cardiology, Stephen Sidney, M.D., M.P.H., of Kaiser Permanente Northern California, Oakland, and colleagues examined recent national trends in death rates due to all cardiovascular disease ...

Jun 29, 2016
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Detecting brain tumors' warped metabolism

When a brain tumor is suspected because of symptoms such as headaches or other problems, its presence is usually confirmed by anatomical imaging such as CT or MRI. But through imaging, doctors often can't say much about the ...

Jun 24, 2016
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Epigenetics: New tool for precision medicine

Four new papers, co-published by an international consortium of biomedical researchers, mark the feasibility of epigenetic analysis for clinical diagnostics and precision medicine. Epigenetic analysis addresses key limitations ...

Jun 27, 2016
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Breakthrough in brain tumour research

A potentially ground-breaking scientific breakthrough with far-reaching consequences for future treatments of brain tumours is to be revealed at an international research meeting in Poland today.

Jun 28, 2016
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Cancer /ˈkænsər/ ( listen), known medically as a malignant neoplasm, is a broad group of various diseases, all involving unregulated cell growth. In cancer, cells divide and grow uncontrollably, forming malignant tumors, and invade nearby parts of the body. The cancer may also spread to more distant parts of the body through the lymphatic system or bloodstream. Not all tumors are cancerous. Benign tumors do not grow uncontrollably, do not invade neighboring tissues, and do not spread throughout the body.

Determining what causes cancer is complex. Many things are known to increase the risk of cancer, including tobacco use, certain infections, radiation, lack of physical activity, poor diet and obesity, and environmental pollutants. These can directly damage genes or combine with existing genetic faults within cells to cause the disease. Approximately five to ten percent of cancers are entirely hereditary.

Cancer can be detected in a number of ways, including the presence of certain signs and symptoms, screening tests, or medical imaging. Once a possible cancer is detected it is diagnosed by microscopic examination of a tissue sample. Cancer is usually treated with chemotherapy, radiation therapy and surgery. The chances of surviving the disease vary greatly by the type and location of the cancer and the extent of disease at the start of treatment. While cancer can affect people of all ages, and a few types of cancer are more common in children, the risk of developing cancer generally increases with age. In 2007, cancer caused about 13% of all human deaths worldwide (7.9 million). Rates are rising as more people live to an old age and as mass lifestyle changes occur in the developing world.

This text uses material from Wikipedia licensed under CC BY-SA

Latest Spotlight News

New technology helps ID aggressive early breast cancer

When a woman is diagnosed with the earliest stage of breast cancer, how aggressive should her treatment be? Will the non-invasive cancer become invasive? Or is it a slow-growing variety that will likely never be harmful?