http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. Researchers have identified characteristic patterns of molecules called microRNA (miRNA) in the blood of people with lung cancer that might reveal both the presence and aggressiveness of the disease, and perhaps who is at risk of developing it. These patterns may be detectable up to two years before the tumor is found by computed tomography (CT) scans. http://medicalxpress.com/news/2011-05-blood-lung-cancer.html Cancer Thu, 12 May 2011 17:50:01 EST news224439217 A new study of U.S. veterans ages 70 and older finds that the healthiest get the most benefit from current colon cancer screening methods. However, for many less healthy veterans the burdens of screening may outweigh the benefits. http://medicalxpress.com/news/2011-05-blood-colon-cancer-screening-beneficial.html Cancer Mon, 09 May 2011 17:00:01 EST news224177471