POSTER SESSION II Monday, February 13, 2006   —  1:00 - 4:30 PM Exhibit Level PEDIATRIC PATHOLOGY 193 Portal Vein Alterations In Patients With Extrahepatic Biliary Atresia (1379) JE Acosta, FG Varela, MP Valencia - Hospital Infantil de Mexico, Mexico, DF, Mexico 194 Correlation Between Histopathologic Findings and Cytokine Gene Polymorphisms in Twin Placentas (1389) AD Polydorides, R Kalish, SS Witkin, RN Baergen - Weill Medical College of Cornell University, New York, NY 195 A Role For Complement In Antiphospholipid Antibody-Associated Placental Pathology (1395) JM Shamonki, JE Salmon, E Hyjek, SL Merlin, RN Baergen - New York Presbyterian Hospital-Weill Cornell, Hospital for Special Surgery, New York, NY 196 Correlation Of Acute Chorioamnionitis With Antepartum Risk Factors For Sepsis And Neonatal Outcome (1388) E Loyd, S Huang, M Ambroise, J Perlman, RN Baergen - Weill Medical College of Cornell University, New York, NY 197 Comparative Placental Studies Of Human Immunodeficiency Virus (HIV)-Positive And HIV-Negative Patients (1394) AN Schuetz, BM Shehata, MM Parast, W Rosene, GM Oprea - Emory University School of Medicine, Children Healthcare of Atlanta at Egleston, Grady Memorial Hospital, Atlanta, GA 198 Correlation Between Villous Mineralization, Embryonic Demise And Aneuploidy (1391) AC Rajadhyaksha, SMV Pflueger - Baystate Medical Center, Springfield, MA 199 Incidence Of Vestigial Remnants In Umbilical Cords (1397) DM Vincenti, DM Jones, JS Ross - Albany Medical College, Albany, NY 200 Expression Of Immunohistochemical Markers In Prenatal Female And Male Gonads (1392) G Rasty, C Kepron, C Sherman - University of Toronto, Toronto, ON, Canada 201 Expression Of Erythropoietin And Its Receptor In Neuroblastomas (1393) H Sartelet, M Fabre, J Bosq, I Racu, E Lagonotte, M Castaing, S Michiels, G Vassal - CHU de Reims, Reims, France; University of Paris XI, Bicetre Hospital, Kremlin-Bicetre, France; Institut Gustave Roussy, Villejuif, France 202 Primary Skull Lesions in the Pediatric Population: A 25 Year Experience (1385) SE Gibson, RA Prayson - Cleveland Clinic Foundation, Cleveland, OH 203 Pituitary Adenomas in Pediatric Patients (1398) CG Webb, RA Prayson - Cleveland Clinic Foundation, Cleveland, OH 204 Pediatric Pheochromocytoma/Paraganglioma: Clinical, Pathologic and Molecular Genetic Study (1383) EA Bundock, H Kozakewich, A Perez-Atayde, PLM Dahia, V Nosé - Children's Hospital, Boston, MA; Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA 205 Analysis of Eosinophilic Infiltration in Reflux Versus Eosinophilic Esophagitis in Pediatric Esophageal Biopsies. (1387) S Karjoo, SS Shah, SK Landas - SUNY - Upstate Medical University, Syracuse, NY