POSTER SESSION I Monday, March 08, 2004   —  9:30 AM - 12:00 Noon Exhibit Hall B and C HEMATOPATHOLOGY 134 Lymphomas with a Follicular Center Phenotype Often Contain Large Tetraploid or Near Tetraploid B-Cells That Are Not in S-Phase Despite High Ki-67 Expression (998) S Al-Quran, Y Li, M Monreal, C Yuan, J Lynch, R Braylan - University of Florida; Shands Hospital, Gainesville, FL 135 Pattern of Aberrant Phenotypes in Pediatric Lymphoblastic Leukemia by Gene Expression Profiling (1003) A Angelina, X Liang - Health Science Center, University of Colorado, Denver, CO; The Children's Hospital, Denver, CO 136 Detection of T Cell Clones Associated with Graft-Versus-Host Disease in Tissue and Blood of Bone Marrow Transplant Patients Using Multiplex Vb PCR and Capillary Sequencing (1012) RC Beck, CL O'Keefe, KS Theil, JP Maciejewski - The Cleveland Clinic Foundation, Cleveland, OH 137 Flow Cytometric Analysis of Peripheral Blood Neutrophils in the Diagnosis of Myelodysplastic Syndromes (1025) S Cherian, JA Vergilio, S Luger, P Klein, JS Moore, A Bagg - Hospital of the University of Pennsylvania, Philadelphia, PA; Brigham and Women's Hospital, Boston, MA 138 p38 Mitogen-Activated Protein Kinase Expression and Regulation in Non-Hodgkin Lymphoma Cells (1033) H Ding, SD Jenson, MS Lim, KSJ Elenitoba-Johnson University of Utah Health Sciences Center, Salt Lake City, UT 139 Cyclin D1-Negative Mantle Cell Lymphoma: A Study of Nine Cases (1044) K Fu, DD Weisenburger, TC Greiner, G Ott, J Delabie, ES Jaffe, RM Braziel, S Gesk, R Siebert, DL Pickering, BJ Dave, WG Sanger, LM Smith, HK Müller-Hermelink, E Campo, RD Gascoyne, A Rosenwald, M Chiorazzi, LM Staudt, WC Chan - For the Lymphoma/Leukemia Molecular Profiling Project 140 CD71 Expression in Diffuse Large B-Cell Lymphoma (1065) MM Imkie, CR Chitambar, B Kampalath, M Datta, AP Dincer, C-C Chang - Baylor College of Medicine, Houston, TX; Medical College of Wisconsin, Milwaukee, WI 141 The Histogenetic Spectrum of Monomorphic B-Cell Posttransplant Lymphoproliferative Disorders (PTLD): Comparison of Epstein-Barr Virus (EBV) Positive and Negative Cases (1067) LR Johnson, MA Nalesnik, B Falini, SH Swerdlow - University of Pittsburgh School of Medicine, Pittsburgh, PA; University of Perugia, Perugia, Italy 142 Use of Serum Proteomic Patterns To Diagnose Acute Graft Versus Host Disease (1074) JK Killian, DH Geho, JT Daniels, VA Fusaro, S Ross, V Espina, EF Petricoin III, LA Liotta, RW Childs, KP Rosenblatt - Laboratory of Pathology, National Cancer Institute, National Heart, Lung and Blood Institute, National Institutes of Health, Food and Drug Administration/National Institutes of Health Clinical Proteomics Program, Bethesda, MD; UT Southwestern Medical Center, Dallas, TX 143 Expression of a SHP1 Splicing Variant with Dominant Negative Effects in Malignant Hematopoietic Neoplasms (1078) J Lee, Y Ma, B Franko, X Song, GZ Rassidakis, H Amin, R Lai - University of Alberta, Edmonton, AB, Canada; University of Arkansas Medical School, Little Rock, AR; University of Texas M.D. Anderson Cancer Center, Houston, TX 144 Detecting the Large Sezary Cells by Flow Cytometry Increases the Diagnostic Sensitivity of Sezary Syndrome but Not Correlates with Patient Survival Status (1083) T Liu, M Abraham, C Boselli, E Vonderhaid, JS Hou - Drexel University College of Medicine, Philadelphia, PA; Johns Hopkins University, Baltimore, MD 145 Application of Real-Time Quantitative PCR to Determine the Impact of Donor t(14;18) Cells in the Corresponding Allogeneic Stem Cell Transplantation Recipients with Follicular Lymphoma (FL) (1091) DK McGregor, CA Keever-Taylor, DH Vesole, DH Farkas, C-C Chang - Baylor College of Medicine, Houston, TX; Medical College of Wisconsin, Milwaukee, WI 146 Expression of CD163 in Normal Tissues, Lymphomas, Carcinomas and Sarcomas Is Limited to a Few Select Neoplasms (1106) TT Nguyen, EJ Schwartz, RB West, RA Warnke, DA Arber, Y Natkunam - Stanford University Medical Center, Stanford, CA 147 HHV-8 in Post-Transplant Lymphoproliferative Disorders (1114) CY Park, RA Warnke, UN Sundram - Stanford University School of Medicine, Stanford, CA 148 ZAP70: A Simple Surrogate for Immunoglobulin Heavy Chain Variable-Region Gene (IgVH) Somatic Hypermutation (SHM) and Prognostic Determination in Chronic Lymphocytic Leukemia (CLL) (1126) RL Sargent, I Cajiao, K Addya, T Pasha, S Liebhaber, A Bagg - Hospital of the University of Pennsylvania, University of Pennsylvania School of Medicine, Philadelphia, PA 149 MUM1/IRF4 Expression in Mantle Cell Lymphoma Correlates with Diffuse Morphology (1136) B Siddiqi, P van Tuinen, RN Rao, L Novoa-Takara, VB Shidham, CR Chitambar, P Hari, B Kampalath - Medical College of Wisconsin, Milwaukee, WI 150 Bone Marrow Examination for Metastatic Disease: Usefulness of the Aspirate Differential (1139) KD Siechen, NS Rosenthal - University of Iowa, Iowa City, IA 151 Phosphorylated MEK is Present in the Majority of Cases of Classical Hl: Evidence for an Active MEK/ERK Pathway in Hl (1146) SJ Sup, B Pohlman, R Steinle, ED Hsi - Cleveland Clinic Foundation, Cleveland, OH 152 Expression Profiling of Transcription Factors Pax-5, Oct1, Oct2, Bob.1, and PU.1 in Classical Hodgkin and Non-Hodgkin Lymphomas: A Comparative Study Using High throughout Tissue Microarrays (1148) SI Syrbu, M Jans, MA Vasef - University of Iowa, Iowa City, IA 153 Immunophenotypic Profile Cannot Differentiate Between Plasmablastic Lymphoma (PL) and the Plasmablastic Variant of Extramedullary Plasmacytoma (1155) F Vega, CC Chang, DK McGregor, C Finch, D Killen, JL Jorgensen - Baylor College of Medicine, Houston, TX 154 BCL10 Expression in Diffuse Large B-Cell Lymphoma (DLBCL) (1156) C Vejabhuti D Feldman, B Kampalath, L Novoa-Takara, C-C Chang - Baylor College of Medicine, Houston, TX; Medical College of Wisconsin, Milwaukee, WI 155 Histiocytic Sarcoma: A Clinicopathologic Study of 5 Cases (1158) JA Vos, SL Abbondanzo, CL Barekman, JW Andriko, NSI Aguilera - Armed Forces Institute of Pathology, and Walter Reed Army Medical Center, Washington, DC 156 Lymphoma of the Breast and the Role of Mammography in Detection of Low-Grade Lymphomas (1159) L Wang, NL Harris, JA Ferry - Massachusetts General Hospital and Harvard Medical School, Boston, MA 157 Flow Cytometry DNA Ploidy Analysis on Peripheral Blood from Patients with Sezary Syndrome: Detection of Aneuploid Neoplastic T Cells in the Blood Is Associated with Large Cell Transformation in Tissue (1160) S Wang, N Li, J Fisk, O Fadare, P Heald, JG Howe, BR Smith - Yale New Haven Hospital, Yale University School of Medicine, New Haven, CT