Joshua D. Schiffman, MD (Damon Runyon Clinical Investigator ‘11-‘14) of University of Utah, Salt Lake City, and colleagues, reported results of a genomic study of Ewing sarcoma (ES), the second most common bone tumor in children and young adults. By examining 40 primary tumors and 12 metastatic lesions, the researchers identified genetic factors predictive of overall survival as well as a particular gene deletion (RELN gene) that is unique to metastatic lesions. These findings will be useful for development of more effective, personalized treatment regimens. The report was published in the journal Cancer Genetics.