Cancer

Cancer diagnoses will rise as population ages

Cancer is a leading cause of death in Virginia and researchers at the University of Virginia's Weldon Cooper Center for Public Service project that the rate of growth in new cancer cases will far outpace ...

2 hours ago
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Technique could speed biologic drugs

Antibodies are specific molecules that can lock onto a particular cellular structure to start, stop or otherwise temper a biological process. Because they are so specific, antibodies are at the forefront ...

4 hours ago
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Omega-3 hope for cancer patients

The chemistry involved in designing drugs with the potential to treat cancer is complex and finicky. The placement of a single atom can be the difference between a cancer killer and a useless bystander. And ...

3 hours ago
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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

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