Cancer

Treatment costs can be another blow to cancer patients

(HealthDay)—The emotional and physical costs of cancer can be staggering. But the financial side of cancer is also a great burden, with many patients in the United States struggling to pay for treatment, new research ...

19 hours ago
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Melanoma isn't the only serious skin cancer

(HealthDay)—A type of skin cancer called squamous cell carcinoma (SCC) is increasingly common in the United States, so people need to be alert for signs of the disease, an expert says.

19 hours ago
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Cancer of childhood in sub-Saharan Africa

Collated Childhood cancer statistics in sub Saharan Africa have been published for the first time as a monograph in the peer reviewed journal ecancermedicalscience, allowing researchers and policymakers a critical new insight ...

2 hours ago
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Why do we actually have blood?

Just as a village can't grow into a city without some form of transport (road, rail or river) that provides necessary interconnections for it to flourish, living things are limited in the size they can reach unless they have ...

6 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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