POSTER SESSION II Monday, February 13, 2006   —  1:00 - 4:30 PM Exhibit Level GASTROINTESTINAL PATHOLOGY 40 Evaluation of Immunohistochemical Expression of p16(INK)4A and Oncogenic Human Papillomavirus in Anal Biopsies from HIV-Positive Males (519) E Morgen, A Lytwyn, I Salit, J Tinmouth, M Sano, W Chapman - University of Toronto, Toronto, ON, Canada; McMaster University, Hamilton, ON, Canada 41 Immunohistochemical Expression Of p16 And Ki-67 Correlate With Degree Of Anal Intraepithelial Neoplasia (AIN) (462) SM Bean, IA Eltoum, DK Horton, L Whitlow, DC Chhieng - University of Alabama at Birmingham, Birmingham, AL 42 P16 And Ki67 Immunoreactivity Is A Reliable Indicator Of High Risk Human Papilloma Virus (HR HPV) In Anal Intraepithelial Neoplasia (AIN) (558) AE Walts, J Lechago, S Bose - Cedars-Sinai Medical Center, Los Angeles, CA 43 Expression of Epidermal Growth Factor Receptor in Squamous Cell Carcinomas of the Anal Canal is Independent of Gene Amplification (456) G Alvarez, A Perry, HL Wang - Washington University, St. Louis, MO 44 Basaloid Squamous Carcinoma of the Esophagus - Pathological and Clinical Considerations (551) LH Tang, JR Shia, N Rizk, M Bains, V Rusch, DS Klimstra - Memorial Sloan-Kettering Cancer Center, New York, NY 45 Novel Indices Of Spatial Distribution, Orientation And Complexity Applied To Barrett's Esophagus, For The Classification And Grading Of Epithelial Dysplasia (538) E Sabo, EA Montgomery, AH Beck, JY Wang, MB Resnick - Rhode Island Hospital, COBRE CCRD and Brown University School of Medicine, Providence, RI; Johns Hopkins Medical Center, Baltimore, MD 46 Histologic Characteristics and Follow-up of 37 Cases of Barrett's Esophagus with High Grade Dysplasia and Intramucosal Adenocarcinoma Treated with Photodynamic Therapy (504) M Krishna, RE Nakhleh, LL Hemminger, HC Wolfsen - Mayo Clinic, Jacksonville, FL 47 Histologic Assessment Of Margins In Endoscopic Mucosal Resections For High-Grade Dysplasia. (553) FR Tavora, B Greenwald, AP Burke - University of Maryland, Baltimore, MD 48 Excellent Interobserver Agreement on Grading the Extent of Residual Carcinoma Following Preoperative Chemoradiation in Esophageal Carcinoma: A Reliable Predictor for Patient Outcome (566) TT Wu, LR Chirieac, SC Abraham, A Krasinskas, H Wang, A Rashid, AM Correa, WL Hofstetter, JA Ajani, SG Swisher UT MD Anderson Cancer Center, Houston, TX; Brigham and Womens Hospital, Boston, MA; Mayo Clinic, Rochester, MN; UPMC, Pittsburgh, PA 49 Expression of Annexin A1 in Esophageal and Esophagogastric Junction Adenocarcinomas: Association with Poor Outcome (455) CT Albarracin, E Resetkova, H Wang, P Anderson, AM Correa, WL Hofstetter, SG Swisher, JA Ajani, A Rashid, SR Hamilton, TT Wu - UT MD Anderson Cancer Center, Houston, TX 50 KOC (K Homology Domain Containing Protein Overexpressed in Cancer) is Expressed Late in the Malignant Transformation of Barrett's Esophagus (467) MP Bramlage, AD Polydorides, RK Yantiss - Weill Medical College of Cornell University, New York, NY 51 Frequency of p53 Mutation and Overexpression in Esophageal Adenocarinoma: a Critical Reassessment (478) SM Chung, J Kao, E Hyjek, Y-T Chen - Weill Medical College of Cornell University, New York, NY 52 Vascular Endothelial Growth Factor-A and Tissue Factor in Distal Esophageal Adenocarcinomas and Precursors: An IHC Tissue Microarray Analysis (477) IA Choudhry, H Du, KW Lannert, RK Orr, MJ Liptay, TA Hensing, MR Pins, CD Sturgis - Evanston Northwestern Healthcare, Evanston, IL; Northwestern Memorial Hospital, Chicago, IL; Northwestern University Feinberg School of Medicine 53 Protein Expression Of Tetraploidy-Associated Genes, Mitosin, CDC2, And CENPA, Is Upregulated In Neoplasia Of Barrett's Esophagus (465) MW Bennett, CA Sanchez, X Li, PS Rabinovitch, BJ Reid, RD Odze - Brigham and Women's Hospital, Boston, MA; Fred Hutchinson Cancer Research Center; University of Washington, Seattle, WA 54 Genomic Abberrations in Metaplastic Barrett's Esophagus from Patients With and Without Carcinoma: Array-Based Comparative Genomic Hybridization (A-CGH) Study (543) M Skacel, D Gaile, G Zhang, MP Bronner, TW Rice, G Casey, J Conroy, N Nowak, GW Falk - Cleveland Clinic Foundation, Cleveland, OH; Roswell Park Cancer Institute, Buffalo, NY 55 Endoscopic Mucosal Resection Does Not Improve Lingering Differences in the Evaluation of Gastric Neoplasia Between Eastern and Western Pathologists (464) NA Belsley, M Mino-Kenudson, S Ban, DY Park, A Ochiai, Y Kato, A Muzikansky, V Deshpande, M Shimizu, M Vieth, GY Lauwers - MGH, Boston, MA; Saitama Med School, Moroyama, Japan; National Cancer Hospital East, Chiba, Japan; Cancer Institute Hospital, Tokyo, Japan; Klinikum Bayreuth, Bayreuth, Germany 56 Post-Gastric EMR Surveillance Biopsies: Evaluation Of Mucosal Changes And Recognition Of Potential Mimics Of Residual Adenocarcinoma (518) T Mitsuhashi, GY Lauwers, S Ban, M Mino-Kenudson, Y Shimizu, F Ogawa, M Shimizu - Tohoku University Graduate School of Medical Science, Sendai, Miyagi, Japan; Massachusetts General Hospital and Harvard Medical School, Boston, MA; Saitama Medical School, Iruma-gun, Saitama, Japan 57 Incidentally Detected Focal Intramucosal Signet-Ring Cell Gastric Carcinoma: An Unrecognized Variant Posing Diagnostic, Therapeutic And Prognostic Challenges (494) S Jakate - Rush University Medical Center, Chicago, IL 58 Reevaluation of Intraglandular Necrotic Debris in Gastric Specimens (522) F Ogawa, S Ban, Y Shimizu, M Shimizu - Saitama Medical School, Iruma-gun, Saitama, Japan 59 Gastric Adenocarcinoma with Low Histologic Grade Simulating Intestinal Metaplasia (461) S Ban, H Horiguchi, F Ogawa, Y Shimizu, T Hirose, M Shimizu - Saitama Medical School, Saitama, Japan; Mito General Hospital, Hitachi Ltd, Ibaraki, Japan 60 Distinct Expression Pattern Of Trefoil Peptides TFF1 And TFF3 In Early Gastric Carcinoma (510) J Liao, E-S Park, G-Y Yang - Feinberg School of Medicine, Northwestern University, Chicago, IL; Chung-Ang University, School of Medicine, Seuol, Korea 61 Analysis Of BRAF-V600E Mutation In Gastric Carcinoma (527) A Paya, S Benlloch, J Tudela, C Alenda, G Peiro, R Jover - Hospital General Universitario, Hospital de Elda, Elda, Alicante, Spain 62 The Prognostic Role of RKIP And STAT3 in Gastric Adenocarcinomas; A Tissue Microarray Study. (534) MB Resnick, E Sabo, D Chatterjee - Rhode Island Hospital and Brown University, Providence, RI 63 NF kappa-B And Bcl-2 In Epstein-Barr Virus Positive Gastric Carcinomas (475) MS Chang, HS Lee, EJ Chung, CW Kim, BL Lee, WH Kim - Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea 64 Loss of Heterozygosity of p16 Gene May Predict Response to Chemoradiation Therapy in Advanced Gastric Cancer (560) J Wang, M Liang, B Liu, SA McCoy, JK Benedetti, CM Fenoglio-Preiser - University of Cincinnati College of Medicine, Cincinnati, OH; University of Washington School of Public Health and Community Medicine, Seattle, WA 65 Mucin Expression And Its Relationship With Clinicopathologic Chariteristics Of 343 Gastric Adenocarcinomas - Emphasis On The Aggressive Behavior Of Null Phenotype (499) HJ Kang, DY Park, SH Lee, DH Shin, MY Sol, JY Kim, KU Choi, CH Lee, HW Kim, GY Huh - College of Medicine Pusan National University, Busan, Republic of Korea