POSTER SESSION I Monday, March 08, 2004   —  9:30 AM - 12:00 Noon Exhibit Hall B and C GYNECOLOGIC PATHOLOGY 104 Distinction of Endometrial Stromal Sarcomas from "Hemangiopericytomatous" Tumors Using a Panel of Immunohistochemical Stains (800) R Bhargava, J Shia, CS Tornos, I Linkov, RA Soslow - Memorial Sloan-Kettering Cancer Center, New York, NY 105 Immunohistochemical and Mutational Analysis of Beta-Catenin in Atypical Endometrial Hyperplasia (AEH) with and without Immature Squamous Metaplasia (Squamous Morules) (802) EF Brachtel, C Sanchez, T Castillo, J Palacios, E Oliva - Massachusetts General Hospital, Boston, MA; Centro Nacional de Investigaciones Oncologicas, Madrid, Spain 106 Immunohistochemical Staining for p16 INK4A in the Vulva Selectively Detects Human Papillomavirus-Related Premalignant and Malignat Lesions (807) J Carreras, C Montagud, M Santos, B Mellado, A Garcia, S Ramon y Cajal, L Puig Tintore, A Cardesa, J Ordi - Hospital Clinic. Institut Investigacions Biomediques August PI I Sunyer (IDIBAPS); University of Barcelona. School of Medicine; Hospital Vall Hebro, Barcelona, Barcelona, Spain 107 p16INK4A Positivity in Benign, Premalignant and Malignant Cervical Glandular Lesions: A Potential Diagnostic Problem (827) CC Heffron, N Murphy, B King, UG Ganuguapathi, M Ring, O Sheils, JJ O Leary - Coombe Women's Hospital, Dublin 8, Dublin, Ireland 108 p16 Expression and Human Papillomavirus Types 16/18 Infection in Cervical Intraepithelial Neoplasm of Adolescents (831) L Hu, M Guo, S Liu, Z He, M Warren, M Hughson - University of Mississippi Medical Center, Jackson, MS 109 Endometrial Cancer in Women 40 Years of Age or Younger: A Clinicopathologic Study of 36 Cases (834) L Jiang, A Malpica, MT Deavers, EG Silva - UT-Houston Medical School, Houston, TX; MD Anderson Cancer Center, Houston, TX 110 Prognostic Significances of Histologic Subtypes and Ki-67 Labeling Index in Patients with Pseudomyxoma Peritonei (835) S-Y Jun, HI Lee, JY Ro, K-R Kim - University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea 111 Mutational Profiling of Serous Borderline Ovarian Tumors (839) U Krishnamurti, E Sasatomi, L Niehouse, D Aldeeb, PA Swalsky, M Jones, SD Finkelstein - University of Pittsburgh Medical Center, Pittsburgh, PA; Magee Womens Hopital-University of Pittsburgh Medical Center, Pittsburgh, PA 112 Assessment of Selectively Oncolytic Adenoviruses for Ovarian Cancer (840) JT Lam, A Kanerva, GJ Bauerschmitz, K Takayama, K Suzuki, M Yamamoto, SM Bhoola, B Liu, M Wang, MN Barnes, RD Alvarez, GP Siegal, DT Curiel, A Hemminki - University of Alabama at Birmingham, Birmingham, AL 113 Successful Establishment of Human Ovarian Tumor Tissue Xenografts Derived from a Broad Spectrum of Primary Tumors (842) CH Lee, X Hui, Y Wang, M Sutcliffe, PW Gout, DG Huntsman, D Miller, CB Gilks, Y Wang - Genetic Pathology Evaluation Centre, Vancouver General Hospital, Vancouver, Canada; Department of Cancer Endocrinology, BC Cancer Agency, Vancouver, Canada; Gynecologic Oncology, BC Cancer Agency, Vancouver, Canada 114 Evaluation of Diagnostic Criteria in Primary Ovarian Mucinous Tumors with an Emphasis on the Significance of Microinvasion (843) HI Lee, S-Y Jun, JY Ro, K-R Kim - University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea 115 Morphology Versus p53 Immunostaining in the Classification of Endometrial Carcinoma: A Reproducibility Study (859) L Lomo, MR Nucci, KR Lee, M Hirsch, M-C Lin, RA Betensky, A Cviko, A Desai, CP Crum, GL Mutter - Brigham and Women's Hospital, and Harvard School of Public Health, Boston, MA; National Taiwan U. Hospital, Taipei, Taiwan 116 Identification of New Markers in Ovarian Cancer with Potential Use in Diagnosis and Treatment (875) J-M Mosquera, C Torres-Cabala, C Chian-Garcia, C Otis, D Roberts, MJ Merino - National Cancer Institute - NIH, Bethesda, MD 117 Serous Carcinoma of the Ovary and Peritoneum with Metastases to the Breast and Axillary Lymph Nodes: A Potential Pitfall (890) MA Recine, MT Deavers, LP Middleton, EG Silva, A Malpica - M. D. Anderson Cancer Center, Houston, TX 118 Aberrant Expression of p21WAF1/Cip1, p27Kip1 and p53 in Preinvasive and Invasive Cervical Adenocarcinoma (915) JJ Xiong, CJ Sung, MR Quddus, MM Steinhoff, WD Lawrence - Women & Infants Hospital and Brown Medical School, Providence, RI 119 Highly Sensitive HPV In Situ Hybridization Can Differentiate High Grade SILs from Its Mimics (922) Y Zhang, GJ Nuovo - Ohio State University Medical Center, Columbus, OH