http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. A type of low-grade but sometimes lethal brain tumor in children has been found in many cases to contain an unusual mutation that may help to classify, diagnose and guide the treatment of the tumors, report scientists at Dana-Farber Cancer Institute. http://medicalxpress.com/news/2013-04-scientists-mutation-pediatric-brain-tumors.html Genetics Tue, 30 Apr 2013 17:28:13 EST news286561685 A multi-institutional team led by Massachusetts General Hospital (MGH) researchers has identified a molecular pathway that appears to be essential for the growth and spread of medulloblastoma, the most common malignant brain tumor in children. In their report in the Feb. 28 issue of Cell, they show that blocking this pathway – which involves interactions between tumor cells and the surrounding tissues – leads to regression of all four molecular subtypes of medulloblastoma in several mouse models. http://medicalxpress.com/news/2013-02-growth-factor-essential-common-malignant.html Cancer Thu, 28 Feb 2013 12:33:45 EST news281277209 (Medical Xpress)—Insights from a genetic condition that causes brain cancer are helping scientists better understand the most common type of brain tumor in children. http://medicalxpress.com/news/2012-11-clues-kids-brain-tumors.html Genetics Fri, 16 Nov 2012 07:42:49 EST news272274161 Researchers studying a rare, lethal childhood tumor of the brainstem discovered that nearly 80 percent of the tumors have mutations in genes not previously tied to cancer. Early evidence suggests the alterations play a unique role in other aggressive pediatric brain tumors as well. http://medicalxpress.com/news/2012-01-mutations-tied-aggressive-childhood-brain.html Genetics Sun, 29 Jan 2012 13:00:04 EST news247034001