POSTER SESSION III Tuesday, March 25, 2003   —  9:30 AM - 12:00 Noon Exhibit Hall A - C GASTROINTESTINAL PATHOLOGY 56 Differential Expression, by Immunohistochemistry, of CDX2 Transcription Factor in Various Adenocarcinomas (577) RM Mazziotta, AC Borczuk, D Alexis, MM Mansukhani Columbia University, College of Physicians & Surgeons, New York, NY 57 Selective Staining of Gastrointestinal Adenocarcinomas by the Homeobox Intestinal Differentiation Factor CDX2 (556) V Kaimaktchiev, S Dirnhofer, G Sauter, V Korcheva, M Mirlacher, M Loda, CL Corless Oregon Health & Science Univ., Portland, OR; Institute of Pathology, Basel, Switzerland; Dana Farber Cancer Inst., Boston, MA 58 Expression of C-KIT, HER-2 Tyrosine Kinase Receptors and Cell Adhesion Molecules (E-Cadherin and Catenin) in Colorectal Carcinomas and Their Relationship with Poor Prognosis (528) S Erdamar, G Dogusoy, O Aydin, S Tekeoglu, M Sohtaoglu, S Gocener, S Goksel Cerrahpasa Medical College, Istanbul, Turkey 59 Comparitive Analysis of Expression of DPC4 Protein in Sporadic Colon Carcinomas and Carcinomas Arising in Inflammatory Bowel Disease (548) KA Hill, R Gupta, SJ Stryker, KL Wang, MS Rao Feinberg School of Medicine, Northwestern University, Chicago, IL 60 Global Expression Analysis of Pancreatic and Colorectal Cancers Reveals Cancer-Type Specific Tumor Markers (575) A Maitra, T Van Heek, V Adsay, C Iacobuzio-Donahue, A Rahman, MG Goggins, RE Wilentz, P Argani, RH Hruban, KD Berg Johns Hopkins Medical Institutions, Baltimore, MD; Harper Hospital, Detroit, MI 61 Evaluation of a Monoclonal Antibody CAB-3 for Diagnosing Human Colorectal Carcinoma Using Tissue Array (573) R Leonard, F Zhou Creighton University Medical Center, Omaha, NE 62 COX-2 Expression in Right-Sided Versus Left-Sided Colon Cancer: A Rationale for Optimization of COX-2 Inhibitor Therapy (583) A Nasir, D Boulware, HE Kaiser, D Coppola, T Yeatman, J Barthel H. Lee Moffitt Cancer Center (MCC) & Research Institute, Univ of South Florida School of Medicine, Tampa, FL; International Society for the Study of Comparative Oncology, Inc., Silver Spring, MD 63 Correlation between Tumour Associated Macrophages, COX-2 Expression and Microvessel Density in Colorectal Cancer (599) KM Sheehan, C Steele, K Sheahan, A O'Grady, FE Murray, MB Leader, EW Kay Beaumont Hospital, Dublin, Ireland; St Vincents Hospital, Dublin, Ireland 64 The Potential Role of ERBB-2 and Cyclooxygenase-2 Expression in Human Colon Carcinoma and Risk Conditions (611) AC Tsamandas, P Ravazoula, T Kourelis, C Kalogeropoulou, T Petsas, D Kardamakis, D Bonikos, H Kalofonos Univ. of Patras, Greece 65 Lymph Node Micrometastases in Colorectal Cancer: Detection by Conventional Techniques (561) M Khalifa, T Fitzgerald, P Iyengar, E Hsieh, A Smith, C Law University of Toronto, Toronto, ON, Canada 66 Predictive Markers of Distant Metastases in T2NO (DUKES B) Colon Cancer. A Study Using Tissue-Arrays (598) J Sanz-Ortega, L Sanchez, S Hernandez, R Cantero, J Sanz-Esponera, JL Balibrea Hospital Clinico San Carlos, Madrid, Madrid, Spain; CNIO (Spanish National Cancer Centre), Madrid, Madrid, Spain 67 Increased Apoptosis in Colorectal Carcinoma and Adenoma as Compared to Paired Non-Neoplastic Mucosa (618) S-Y Xiao, JH Tonry, X Wu, HL Wang University of Texas Medical Branch, Galveston, TX; Washington University School of Medicine, St. Louis, MO 68 Differential MUC1, MUC2 and MUC5AC Expression in Colorectal, Ampullary and Pancreatobiliary Carcinomas: Potential Biologic and Diagnostic Implications (626) H Zhang, A Maitra, P Tabaczka, RE Wilentz, RH Hruban, NV Adsay Wayne State University, Detroit, MI; John Hopkins University Hospitals, Baltimore, MD 69 Incidental Rectal Carcinoids: Exploration for Residual Tumor and Follow-Up for Outcome (515) B Bhattacharya, T Saclarides, M Brand, S Jakate Rush-Presbyterian St. Luke's Medical Center, Chicago, IL 70 Microallelotypes of Mixed Gut Endocrine-Exocrine Tumors (535) D Furlan, R Cerutti, A Genasetti, G Pelosi, S Uccella, S La Rosa, C Capella University of Insubria, Varese, Italy; European Institute of Oncology, Milan, Italy 71 The Role of $-Catenin, TGF$3, NGF, FGF, IGFR2 and BMP4 in the Pathogenesis of Mesenteric Sclerosis and Angiopathy in Midgut Carcinoids (536) EE Furth, KW Min, X Cai, JR Goldblum, H Liang, TL Pasha, PJ Zhang University of Pennsylvania, Philadelphia, PA; Cleveland Clinic Foundation, Cleveland, OH; Deaconness Hospital, Oklahoma City, OK 72 Carcinoid Tumors and Thyroid Transcription Factor - 1 (604) S Shukla, T Chuang, A Gupta, MS Talamonti, MS Rao Northwestern University, Chicago, IL 73 Goblet Cell Carcinoid of the Appendix: A Clinico-Pathologic and Molecular Analysis (606) M Stancu, T-T Wu, C Wallace, SR Hamilton, A Rashid The University of Texas M.D. Anderson Cancer Center, Houston, TX 74 Immunophenotypical Characterization and Clinical Behavior of Mucin Producing Neuroendocrine Tumors of the Appendix (609) LH Tang, J Shia, WD Wong, DS Klimstra Memorial Sloan-Kettering Cancer Center, New York, NY 75 Frequent 18q Loss in Appendiceal Mucinous and Non-Mucinous Adenocarcinoma (576) DM Maru, A Canada, A Rashid, TT Wu, KC Cleary, SR Hamilton University of Texas M.D.Anderson Cancer Center, Houston, TX