POSTER SESSION II Monday, March 19, 2012   —  1:00 PM - 4:30 PM CC Exhibit Hall B3 & C 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 235 An Investigation of miRNAs in the Pathogenesis of Pediatric/ Wild-Type Gastrointestinal Stromal Tumor (1956) L Kelly, S Kim, K Bryan, M Debiec-Rychter, MJ O´Sullivan - Our Lady´s Children´s Hospital, Crumlin, Dublin 12, Ireland Add 236 DAX-1 and ap2 beta Are Liable Markers of Translocation Positive Alveolar Rhabdomyosarcoma (ARMS) (1955) B Di Venosa, A Rosolen, A Zin, E Lalli, V Guzzardo, R Alaggio - Padua University, Padua, Italy; CNRS UMR, Valbonne, France Add 237 Confocal Microscopy Image Analysis of Pancreatic β-Cells KATP Channel Proteins in Congenital Hyperinsulinism (CHI) (1957) SM Lovisolo, AL Garippo, F Guedes, MC Zerbini - University of Sao Paulo Medical School, Sao Paulo, Brazil; HU-USP, Sao Paulo, Brazil; USP, Sao Paulo, Brazil Add 238 Employment of the ADAMTS13 Assay Improved the Accuracy and Efficiency of the Diagnosis and Treatment of Suspected Acquired Thrombotic Thrombocytopenic Purpura (1954) BD Barrows, J Teruya - Baylor College of Medicine, Houston, TX Add