POSTER SESSION I STOWELL-ORBISON/AUTOPSY and SURGICAL PATHOLOGY AWARDS COMPETITION Monday, February 28, 2011   —  9:30 AM - 12:00 Noon Exhibit Hall Click on the blue numbers in parentheses to display abstracts. Click the button next to any title to add to Itinerary Planner... PEDIATRIC PATHOLOGY Poster# Title and Authors Itinerary Planner 220 Morphoproteomics Provides Further Insight into the Biology of Metastatic Osteosarcoma and Identifies Potential Therapeutic Targets. (1705) S Alexandrescu, P Anderson, J Buryanek, RE Brown - University of Texas- Medical School, Houston; MD Anderson Cancer Center, Houston, TX Add 221 β-Catenin and Novel Associated Proteins in Nasopharyngeal Angiofibromas. (1707) SL Cook, RD LeGallo, SE Mills, EB Stelow - University of Virginia, Charlottesville Add 222 Correlation between Vascular Endothelial Growth Factors Expression and Risk of Bone Marrow Metastasis in Children with Neuroblastoma. (1709) K Hooper, AG Saad, JM Osman - Arkansas Children's Hospital, Little Rock Add