Cancer

Skin cancer rates five times higher than in 70s

(Medical Xpress)—The rates of people diagnosed with malignant melanoma, the most serious form of skin cancer, are now five times higher than 40 years ago, according to figures announced by Cancer Research ...

2 hours ago
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What makes some cancers more deadly?

A Flinders University researcher is searching for answers as to why some leukaemia sufferers live a normal lifespan while others succumb to the disease within months.

3 hours ago
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Cancer patients need anxiety, depression screening

(HealthDay)—It is important to recognize and treat anxiety or depression among cancer patients, according to a clinical guideline published online April 14 in the Journal of Clinical Oncology.

16 hours ago
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Amgen misses 1Q views as higher costs cut profit

Despite higher sales, biotech drugmaker Amgen's first-quarter profit fell 25 percent as production and research costs rose sharply, while the year-ago quarter enjoyed a tax benefit. The company badly missed ...

17 hours ago
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Pre-HPV vaccine, most oropharyngeal cancers HPV+

(HealthDay)—Most oropharyngeal cancers in the United States diagnosed between 1995 and 2005 were positive for human papillomavirus (HPV), specifically HPV 16 or 18, according to a study published in the May issue of the ...

17 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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