POSTER SESSION IV Tuesday, March 25, 2003   —  1:00 - 4:30 PM Exhibit Hall A - C GENITOURINARY PATHOLOGY 96 Loss of Expression of TSC-1 and TSC-2 Gene Products in Sporadic Renal Angiomyolipoma (800) JJ Wei, L Chiriboga, P Li, H Yee, MB Stokes New York University, New York, NY 97 Poor Correlation between IHC and RT-PCR Detection of Tyrosinase in Tumors Derived from Perivascular Epithelioid Cells (PEC Tumors) (782) JJ Sola, J Gomez-Roman, A Panizo, MA Idoate, MD Lozano, JF Val-Bernal, J Pardo CUN, Pamplona, Spain; HCU Valdecilla, Santander, Spain 98 Renal Lymphoma: The Morhpologic Spectrum and Clinical Correlates in 23 Cases (781) MJ Smith, N Caraway, LD Truong Baylor College of Medicine, Houston, TX; M.D. Anderson Cancer Center, Houston, TX 99 Relevance of Nuclear and Cytoplasmic pVHL Protein Expression in Renal Carcinoma Progression (770) P Schraml, A Hergovitz, F Hatz, MB Amin, SD Lim, W Krek, MJ Mihatsch, H Moch University Basel, Basel, Switzerland; Friedrich-Miescher-Institute, Basel, Switzerland; Emory University, School of Medicine, Atlanta, GA 100 Low Grade Collecting Duct Carcinoma of the Kidney -Pathologic and Cytogenetic Study of Two Cases (759) F Richter, F Fromowitz UMDNJ, Newark, NJ 101 Angiomyolipoma and PEComa Are Immunoreactive for MyoD1 in Cell Cytoplasmic Staining Pattern (753) A Panizo, JJ Sola, E de Alava, M Idoate, G Toledo, E Soria, J Pardo Clinica Universitaria de Navarra, Pamplona, Spain 102 Fatty Acid Synthase in Renal Tumors (746) TL Nicol, PM Alli, J Alsruhe, FP Kuhajda Johns Hopkins Bayview Medical Center, Baltimore, MD 103 Implication of the INK4A/ARF Locus in Renal Cell Epithelial Tumors (RCET) after the Chernobyl Accident (727) A Llombart-Bosch, JA Lopez-Guerrero, L Morell-Quadreny, A Romanenko, V Nepomnyaschy, A Vozianov, A Pellin Medical School, University of Valencia, Spain; Institute of Urology, AMSU, Kiev, Ukraine 104 Expression of PTEN in Renal Cell Carcinoma and the Relation to Tumor Growth and Behavior (723) JS Lee, YB Kim, MC Lee, CS Park, KW Min Seonam University, College of Medicine, Namwon, Republic of Korea; Chonnam University Medical School, Gwangju, Republic of Korea; Deaconess Hospital, Oklahoma, OK 105 Synovial Sarcomas (SS) of Kidney with Rhabdoid (R) Features (705) SY Jun, J Choi, GH Kang, SH Park, HW Kim, JY Ro Asan Medical Center, Seoul, Republic of Korea; Seoul National Univ. College of Medicine, Seoul, Republic of Korea; National Center Center, Seoul, Republic of Korea; Gyeong Sang National Univ. College of Medicine, Jinju, Republic of Korea 106 Angiomyolipomas (AML) of Kidney: An Immuno-Histochemical Study on Tissue Microarray Specimens (698) EK Hong, SY Jun, HJ Joo, KR Kim, JY Ro National Cancer Center, Ilsan, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Ajou Univ. School of Medicine, Suwon, Republic of Korea 107 Leiomyosarcoma of the Kidney: A Clinicopathologic Study (668) AT Deyrup, E Montgomery, C Fisher University of Chicago, Chicago, IL; The Johns Hopkins University, Baltimore, MD; Royal Marsden Hospital, London, United Kingdom 108 Immunohistochemical Detection of HLA-G in Invasive and Non-Invasive Clear Cell Renal Cell Carcinoma (657) C-J Cheng, L-M Lee, J-S Chu, T-Y Chen, H-S Chiang Taipei Medical University, Taipei, Taiwan, Taiwan 109 Immunohistochemical Study of Sarcomatoid Renal Cell Carcinoma, with Special Attention to c-Kit and CD10 Expression (654) M Castillo, J Carreras, A Petit, P Beardo, A Palacin, C Mallofre Hospital Clinic, Barcelona, Barcelona, Spain 110 S-100 and Expression in Renal Development and Cortical Neoplasms (637) G Azabdaftari, A Ucci, I Bhan, BF Banner, JC Chevielle, J Alroy New England Medical Center, Boston, MA; UMass Memorial Healthcare, Worceter, MA; Mayo Clinic, Rochester, MN 111 Detection of Chromosome 7 and 17 Aneuploidy in Type 1 Papillary Renal Cell Carcinoma by Chromogenic In Situ Hybridization (CISH). A Comparison with Other Renal Cell Tumors (761) RD Ronchetti, CA Torres-Cabala, CA Chian-Garcia, R Eyler, WM Linehan, MJ Merino National Cancer Institute, Bethesda, MD 112 Molecular Classification of "Granular Cell" Renal Cell Carcinoma by Genetic Profiling (804) XJ Yang, M Takahashi, BT Teh The University of Chicago, Chicago, IL; Van Andel Research Institute, Grand Rapids, MI 113 Eosinophilic Cells in Conventional Renal Cell Carcinoma (CRCC): Observations in 100 Cases and Implications for Fuhrman Nuclear Grading (FNG) (628) NA Abrahams, JW Slaton, CG Wood, AG Ayala, P Tamboli UT M. D. Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN 114 Metastases to the Kidney: A Clinicopathologic Analysis of 50 Cases (783) P Tamboli, NA Abrahams, ET Wright, JY Ro, AG Ayala UT M. D. Anderson Cancer Center, Houston, TX 115 Differential Role of Angiogenesis in Clear Cell and Chromophobe Renal Cell Carcinoma and Oncocytoma (777) R Shen, H Zhang, X Li, T Bismar, W Sakr, D Grignon, M Che Harper University Hospital, Karmanos Cancer Institute and Wayne State University, Detroit, MI 116 Spectrum of Epithelial Tumors in End Stage Renal Disease (ESRD): Emphasis on Histologic Patterns Distinct from Those in Sporadic Adult Renal Neoplasia (786) SK Tickoo, MN dePeralta-Venturina, M Salama, Y Wang, H Moch, MB Amin WMC of Cornell University, New York, NY; Henry Ford Hospital, Detroit, MI; Emory University, Atlanta, GA; University of Basel, Switzerland 117 Possible Tumor Suppressor: Role of Inhibin in Renal Carcinogenesis (1222) RB Munivenkatappa, EM Youssef, CB Drachenberg, JC Papadimitriou, J-PI Issa, SG Silverberg University of Maryland Medical Center, Baltimore, MD; University of Texas at MD Anderson Cancer Center, Houston, TX 118 CD3 Is a Good Marker for Renal Oncocytomas (1211) D Baiyee, Z Jiang, B Banner UMass Memorial Healthcare, Worcester, MA 119 Value of Alpha-methylacyl-CoA Racemase Staining in the Differential Diagnosis of Papillary Carcinomas (1225) S Sahoo, M Tretiakova, C Gong, X Yang, T Krausz The University of Chicago, Chicago, IL