PROFFERED PAPERS Tuesday, March 20   —  8:00 AM   —  CC Ballroom A/B Click on the blue numbers in parentheses to display abstracts. Click the button next to any title to add to Itinerary Planner... Section A - Genitourinary Pathology (Including Renal Tumors) Chaired by: Thomas Wheeler and Steven Shen Time Title and Authors Itinerary Planner 8:00 Improved Method of Detecting the ERG Gene Rearrangement in Prostate Cancer Using Combined Dual-Color Chromogenic and Silver In-Situ Hybridization (808) M Braun, J Stomper, D Boehm, W Vogel, V Scheble, N Wernert, Z Shaikibrahim, F Fend, G Kristiansen, S Perner - University Hospital of Bonn, Bonn, Germany; University Hospital of Tuebingen, Tuebingen, Germany Add 8:15 Does SPOP-Mutated Prostate Cancer Have Specific Morphology? (1035) KR Turner, K Park, S Bacca, Y-L Chiu, C Barbieri, F Demichelis, L Garraway, M Rubin, JM Mosquera - Weill Medical College of Cornell University, New York, NY; The Broad Institute of Harvard and MIT, Cambridge, MA; Harvard Medical School, Boston, MA Add 8:30 Landscape of Chromosome Number Changes during Prostate Cancer Progression (1018) J Stomper, M Braun, W Vogel, D Boehm, V Scheble, F Fend, S Perner - University Hospital of Bonn, Bonn, Germany; University Hospital of Tuebingen, Tuebingen, Germany Add 8:45 Diagnostic Utility of a Comprehensive Immunohistochemical Panel To Differentiate High Grade Urothelial Carcinoma (UCa) from Prostatic Adenocarcinoma (PCa) (958) SK Mohanty, D Luthringer, AM Gown, M Aron, MB Amin - Cedars-Sinai Medical Center, Los Angeles, CA; PhenoPath Laboratories, Seattle, WA Add 9:00 The Diagnostic Accuracy and Clinical Role of Percutaneous Renal Needle Core Biopsy in Renal Cortical Neoplasms (861) LL Gellert, R Mehra, Y Chen, A Gopalan, S Fine, H Al- Ahmadie, VE Reuter, S Tickoo - Memorial Sloan-Kettering Cancer Center, New York, NY Add 9:15 A New microRNA-Based Diagnostic Test for Classification of Kidney Tumors (854) E Fridman, S Rosenwald, E Meiri, E Goren, S Zilber, Y Huang, I Barshack, I Burnstein, I Krivitsky, M Zepeniuk, N Dromi, Y Goren, Y Spector - Sheba Medical Center, Tel-Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; Rosetta Genomics Ltd., Rehovot, Israel; Rabin Medical Center, Petah Tikva, Israel; Temple University Hospital, Philadelphia, PA Add 9:30 RECESS, EXHIBITS, POSTER SESSION III   11:00 miRNA Profiling in Metastatic Renal Cell Carcinoma Reveals a Tumor Suppressor Effect for miR-215 (1055) NMA White, HWZ Khella, J Grigull, S Adzovic, YM Youssef, RJ Honey, R Stewart, KT Pace, GA Bjarnason, MAS Jewett, AJ Evans, M Gabril, GM Yousef - St. Michael´s Hospital, Toronto, ON, Canada; University of Toronto, Toronto, ON, Canada; York University, Toronto, ON, Canada; Sunnybrook Health Sciences Center, Toronto, ON, Canada; Princess Margaret Hospital, Toronto, ON, Canada; London Health Sciences Center, London, ON, Canada Add 11:15 Clear Cell Renal Cell Carcinomas That Respond to Tyrosine Kinase Inhibitor Sunitinib Have Distinct microRNA Expression Patterns from Non-Responders (1079) M Zhou, K Streator Smith, P Carver, S Falzarano, L Wood, B Rini, C Magi-Galluzzi - Cleveland Clinic, Cleveland, OH; New York Univeristy, New York Add 11:30 Practice-Based Differences in Ancillary Stain Usage When Evaluating Prostate Needle Core Biopsies (992) BD Robinson, RK Yantiss - Weill Cornell Medical College, New York Add 11:45 Prostate Total Tumor Extent vs. Index Tumor Extent: Which Is Predictive of Biochemical Recurrence Following Radical Prostatectomy? (802) A Billis, L Meirelles, LLLL Freitas, AS Polidoro, HA Fernandes, MM Padilha, LA Magna, LO Reis, U Ferreira - University of Campinas (Unicamp) School of Medicine, Campinas, SP, Brazil Add