POSTER SESSION I Monday, February 28, 2005   —  9:30 AM - 12:00 Noon Convention Center, Exhibit Hall B PEDIATRIC PATHOLOGY 199 Gastrointestinal Stromal Tumors (GISTs) in Children and Young Adults. A Clinicopathologic, Molecular and Genomic Study of Sixteen Cases (1415) S Prakash, L Sarran, N Socci, J Eisenstadt, AM Greco, RP DeMatteo, RG Maki, LH Wexler, MP LaQuaglia, P Besmer, CR Antonescu - Memorial Sloan-Kettering Cancer Center, New York, NY; New York University, New York, NY 200 Maternal Vasculopathy and Diagnosis of Pre-Eclampsia: Histological Analyses of Placentas (1416) MJ Schmidt, L Cook, P Zhang - West Virginia University, Morgantown, WV