POSTER SESSION IV Tuesday, March 25, 2003   —  1:00 - 4:30 PM Exhibit Hall A - C ENDOCRINE PATHOLOGY 59 Galectin-3 Expression in Pituitary Tumors (491) D Riss, L Jin, JM Bayliss, K Kovacs, S Vidal, BW Scheithauer, RV Lloyd Mayo Clinic, Rochester, MN; St. Michaels Hospital, Toronto, Canada 60 Non-Functioning Pituitary Adeomas Are Equippited with Multiple Transcrition Factors Highlighting Gonadotropin Production (464) N Egashira, Y Ishii, N Sanno, A Teramoto, RY Osamura Tokai University School of Medicine, Isehara-City, Kanagawa, Japan; Nippon Medical School, Bunnkyoku, Tokyo, Japan 61 Ikaros Isoforms in Human Pituitary Tumors: Distinct Localization, Deacetylation, and Activation of the 5' FGFR4 Promoter (466) S Ezzat, SJ Yu, SL Asa Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada; University Health Network, University of Toronto, Toronto, ON, Canada 62 Heterogeneity of DNA and Proliferation Markers Is the Hallmark of Monoclonal Adrenocortical Neoplasms (462) M de Miguel, A Blanes, SJ Diaz-Cano University of Seville School of Medicine, Seville, Spain; University of Malaga School of Medicine, Malaga, Spain; Barts and the London School of Medicine, London, United Kingdom 63 Immunohistochemical Expression of Hypoxia- Induced Transcription Factors in Pheochromocytoma and Extra-Adrenal Paraganglioma (495) A Srivastava, JM Brachold, J Powers, AS Tischler Tufts-New England Medical Center, Boston, MA 64 Distinct Transcriptional Profiles of Metastasizing and Non-Metastasizing Adrenal and Extra-Adrenal Paragangliomas Uncovered by DNA Microarray Analysis (470) T Giordano, M Lizyness, R Kuick, D Sanders, D Thomas, D Misek, A Smith, S Hanash, B Shulkin University of Michigan, Ann Arbor, MI 65 Germ-Line Mutations in the SDHD Gene in Patients with Familial Paraganglioma (478) X Matias-Guiu, L Catasus, H Lagarda, V Palomar, M Quer Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Hospital Universitari Arnau de Vilanova. University of Lleida, Lleida, Spain 66 Neuroendocrine Tumors of the Pancreas: A Clinical-Pathologic Study of 70 Cases (486) D Perez-Montiel, WL Frankel, D Cantu de Leon, S Suster Ohio State University Medical Center, Columbus, OH; Instituto Nacional de Cancerologia, Columbus, Mexico City, Mexico 67 Abnormal Expression of Cell Cycle Control Genes in Pancreatic Endocrine Neoplasms (473) MG House, MZ Guo, RD Schulick, JL Cameron, CJ Yeo, RH Hruban, J Groth, JG Herman, A Maitra, J Geradts The Johns Hopkins School of Medicine, Baltimore, MD; Roswell Park Cancer Institute of SUNY, Buffalo, NY 68 Allelotyping Analysis of Gastroenteropancreatic (GEP) Endocrine Tumors (ETs) (469) D Furlan, R Cerutti, A Genasetti, S Uccella, S La Rosa, C Capella University of Insubria, Varese, Italy 69 Absence of BRAF Exon 11 and 15 Mutations in Neuroendocrine Tumors (487) A Perren, P Saremaslani, S Schmid, C Bonvin, T Locher, PU Heitz, P Komminoth University Hospital, Zurich, Switzerland; Baden, Switzerland 70 Diagnostic Value of Microtubule Associated Protein-2 in Pulmonary Large Cell Neuroendocrine Carcinoma (475) YL Liu, SS Shen, JY Ro, RJ Landreneau, JF Silverman Allegheny General Hospital, Pittsburgh, PA; Baylor College of Medicine and M.D. Anderson Cancer Center, Houston, TX 71 Immunohistochemical Expression of SMAD4 and PTEN in a Spectrum of Neuroendocrine Carcinomas (494) A Srivastava, O Padilla, JS Ditelberg Tufts-New England Medical Center, Boston, MA 72 Biotin-Rich Optically Clear Nuclei (BROCN) Express Estrogen Receptor $ (ER$ but Not ER" (481) Y Nakatani, K Masudo, A Nozawa, Y Inayama, T Ito, H Kitamura, K Notohara, K Kashima, S Yokoyama, M Tsujimoto, S Tamai, Y Abe, O Matsubara, M Resl, EJ Mark Yokohama City University Medical Center; Ito Hospital, Tokyo; Hospital of Yokohama City University; Yokohama City University School of Medicine, Yokohama, Kanagawa; Okayama University Graduate School of Medicine and Dentistry, Okayama; Oita Medical College, Oita; Osaka Police Hospital, Osaka; National Defense Medical College, Tokorozawa; National Kanagawa Hospital, Hadano, Japan; Charles University, Hradec Kralove, Czech Republic; Massachusetts General Hospital and Harvard Medical School, Boston, MA