Cancer

Understanding epilepsy in pediatric tumors

Pediatric brain tumors are characterized by frequent complications due to intractable epilepsy compared to adult brain tumors. However, the genetic cause of refractory epilepsy in pediatric brain cancer has not been elucidated ...

Sep 20, 2018
popularity22 comments 0

Researchers identify human skeletal stem cells

Human skeletal stem cells that become bone, cartilage, or stroma cells have been isolated from fetal and adult bones. This is the first time that skeletal stem cells, which had been observed in rodent models, have been identified ...

Sep 20, 2018
popularity109 comments 0

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

Experimental vaccine shows promise in preventing TB

(HealthDay)—Tuberculosis remains the most lethal of infectious diseases worldwide, killing more than 1.6 million people a year. But researchers say a new vaccine might prevent half of full-blown illnesses in infected people ...

Many doctors in India miss TB signs: study

Many private sector doctors in India miss the signs of tuberculosis and therefore provide patients inadequate treatment, according to a new study published Tuesday involving people hired to act out the symptoms.

Sensitive babies become altruistic toddlers

Our responsiveness to seeing others in distress accounts for variability in helping behavior from early in development, according to a study published September 25 in the open-access journal PLOS Biology by Tobias Grossmann ...

Genetic testing: Not a one-and-done deal

Genetic testing can play a substantial role in medical management by uncovering changes in genes that are associated with an increased risk for hereditary cancers. A new research study from investigators at UT Southwestern ...