POSTER SESSION I Monday, February 13, 2006   —  9:30 AM - 12:00 Noon Exhibit Level GASTROINTESTINAL PATHOLOGY 66 True Smooth Muscle Neoplasms of the Stomach: A Clinicopathologic Study (454) W Ahrens, N Dow, J Lasota, M Miettinen, D Jain - Yale School of Medicine, Yale New Haven Hospital, New Haven, CT; Armed Forces Institute of Pathology, Washington, DC 67 Mucinous Carcinoma Peritonei as the Pathologic Counterpart of Pseudomyxoma Peritonei: 101 Patients with Primary Appendiceal Neoplasms, Uniformly Treated at One Institution. A Clinicopathologic Analysis with Literature Review. (466) RF Bradley, JH Stewart, GB Russell, EA Levine, KR Geisinger - Wake Forest University Baptist Medical Center, Winston-Salem, NC 68 Enteroendocrine Cell Dysgenesis And Malabsorption, A Histopathologic Characterization. (469) CN Burge, GR Cortina - - UCLA, Los Angeles, CA 69 Eosinophilic Esophagitis Versus Reflux Esophagitis: Correlation of Clinico-pathologic Features, Expression of Eotaxin-2 and Chemokine Receptor-3. (474) J Carlsten, MB Resnick, S Jakate, S Kethu*, S Mangray, B Aswad, B Bhattacharya - Rhode Island Hospital, Providence, RI; Rush University, Chicago, IL 70 Perineural And Vascular Invasion In Colorectal Carcinoma: Comparison Of Detection Methods To Clinical Outcome (484) BL Dursteler, CS Jensen, FA Mitros, RA Robinson - University of Iowa, Iowa City, IA 71 Origin of Multifocal Neuroendocrine Tumors of the Enteropancreatic Axis (500) TM Katona, TD Jones, M Wang, FW Abdul-Karim, OW Cummings, L Cheng - Indiana University School of Medicine, Indianapolis, IN; Case Western Reserve University, Cleveland, OH 72 Lymphatic Microvessel Density As Prognostic Marker In Colorectal Cancer (502) L Kordunsky, JF Silverman, YL Liu, KL Denning, M Tung, RS Saad - Allegheny General Hospital, Pittsburgh, PA 73 Different Histopathological Features between Gastrointestinal Stromal Tumors with KIT and PDGFRA mutation (505) J Kwon, HJ Kang, H Kim, SEH Kim, H Kim - Yonsei University College of Medicine, Seoul, Korea 74 Remarkable Prognostic Heterogeneity Justifies Subdividing High-Risk Gastrointestinal Stromal Tumors (GIST) Of NIH Consensus Scheme Into Two Different Risk Groups (509) CF Li, WW Huang, CN Lin, D Lu, HY Huang - Chi-Mei Foundation Medical Center, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Chang Gung Memorial Hospital, Kaohsiung, Taiwan 75 Impact Of Neoadjuvant Therapy On The Lymph Nodes Status After Mesorectal Excision For Rectal Adenocarcinoma (537) A Rullier, C Laurent, M Capdepont, V Vendrely, G Belleannee, P Bioulac-Sage, E Rullier - CHU Pellegrin, Bordeaux, France; Hopital Saint Andre, Bordeaux, France; Hopital du Haut leveque, Pessac, France; CHU Pellegrin, Bordeaux, France 76 Sessile Serrated Adenomas with High-Grade Dysplasia and Early Carcinomas; An Immunohistochemical Study of Serrated Lesions "Caught in the Act" (542) T Sheridan, A Burkart, M Lewin, C Iacobuzio-Donahue, H Fenton, WL Frankel, E Montgomery - Johns Hopkins; Ohio State University 77 Emergence of Eosinophilic (Allergic) Esophagitis: Increased Incidence or Increased Recognition? (554) AD Vanderheyden, R Petras, B DeYoung, FA Mitros - University of Iowa Hospitals and Clinics, Iowa City, IA; Northeastern Ohio Universities College of Medicine, Rootstown, OH 78 Barrett's/Cardiac High Grade Dysplasia Is Not A Strong Marker For Concurrent Carcinoma, Unless Architectural Changes Suspicious For Adenocarcinoma Are Also Present. (573) W Zhu, HD Appelman, JK Greenson, SR Ramsburgh, MB Orringer, AC Chang, BJ McKenna - University of Michigan Hospitals, Ann Arbor, MI