POSTER SESSION VI Wednesday, March 26, 2003   —  1:00 - 4:00 PM Exhibit Hall A - C HEAD AND NECK PATHOLOGY 130 Prognostic Significance of Dysadherin Expression in Tongue Cancer: Immunohistochemical Analysis of 91 Cases (1007) Y Nakanishi, S Akimoto, Y Kanai, M Sakamoto, S Hirohashi Pathology Division, National Cancer Center Research Institute, Tokyo, Japan 131 CD10 Expression in Salivary Gland Tumors, Emphasizing the Distinction of Primary Clear Cell Carcinoma from Renal Cell Carcinoma (1012) JT Rabban, N Dekker, RCK Jordan University of California-San Francisco, San Francisco, CA 132 Lack of FGFR-4 and NCAM Expression by Adenoid Cystic Carcinoma of the Head and Neck May Be Indicative of Decreased Cell-Matrix Adhesion (1011) B Perez-Ordonez, SL Asa University Health Network, University of Toronto, Toronto, ON, Canada 133 KIT Expression and Activation in Adenoid Cystic Carcinoma (1010) AM Oliveira, JL Hornick, A Duensing, F Medeiros, CDM Fletcher, JA Fletcher Brigham and Women's Hospital, Boston, MA; Mayo Clinic, Rochester, MN 134 C-kit Expression in Polymorphous Low-Grade Adenocarcinoma and Adenoid Cystic Carcinoma (1004) PA Kay, TJ Parrett, KD Olsen, A Prasad, JE Lewis Mayo Clinic, Rochester, MN 135 The Use of c-KIT in the Differential Diagnosis of Adenoid Cystic Carcinoma (1000) C Gomez-Fernandez, M Garcia, M Jorda, D Weed University of Miami/Jackson Memorial Medical Center, Miami, FL 136 Pleomorphic Adenoma: Correlation Study between Histology and Karyotype (998) A Felix, C Martins, C Ribeiro, I Fonseca, J Soares Instituto Portugues de Oncologia, Lisboa, Portugal 137 06-Methylguanine-DNA Methyltransferase (MGMT) Gene in Head and Neck Squamous Cell Carcinoma(HNSCC): Promoter Methylation and Loss of Protein Expression with Clinical Correlation in 94 Patients (1020) C Zuo, L Ai, P Ratliff, JY Suen, E Hanna, TP Brent, C-Y Fan University of Arkansas for Medical Sciences and John L. McClellan Memorial Veterans' Hospital, Little Rock, AR; University of Arkansas for Medical Sciences, Little Rock, AR; St. Jude Children's Research Hospital, Memphis, TN 138 hMLH1 DNA Mismatch Repair Gene in Head and Neck Squamous Cell Carcinoma (HNSCC): Promoter Methylation and Loss of Protein Expression with Clinical Correlation in 94 Patients (1019) C Zuo, L Ai, P Mukunyadzi, JY Suen, E Hanna, C-Y Fan University of Arkansas for Medical Sciences and John L. McClellan Memorial Veterans' Hospital, Little Rock, AR 139 Oral Squamous Carcinoma (OSCC): Invasion Pattern and Margin Status Correlate with Locoregional Recurrence (LRR) (993) M Brandwein, M Teixeira, L Rolnitzky, C Lewis, B Lee, M Urken, B Wang Mount Sinai Medical Center, NY, NY 140 Correlation of the Protein Expression with Epigenetic and Mutation Changes of Wnt Pathway-Related Genes in Oral Cancer (994) JH Chang, JG Chang, TH Lin, YF Wang, KT Yeh Changhua Christian Hospital; China Medical College, Taiwan 141 Constitutive Activation of STAT3 and STAT5 Is Present in the Majority of Nasopharyngeal Carcinoma and Correlates with Better Prognosis (1003) YT Jin, RH Huang, WC Chen, HW Tsai, JR Hsiao, WC Su National Cheng Kung University Medical Center, Tainan, Taiwan 142 Molecular Analysis of Head and Neck Squamous Carcinoma Variants: Evidence for Linear and Stochastic Evolution (995) R Choi, SL Tucker, AM Gillenwater, MA Luna, JG Batsakis, AK El-Naggar UT M.D. Anderson Cancer Center, Houston, TX 143 p16 Tumor-Suppressor Gene in Head and Neck Squamous Cell Carcinoma: Promoter Methylation and Loss of Protein Expression with Clinical Correlation in 121 Patients (992) L Ai, KK Stephenson, C Zuo, P Mukunyadzi, JY Suen, E Hanna, C-Y Fan University of Arkansas for Medical Sciences and John L. McClellan Memorial Veterans' Hospital, Little Rock, AR; University of Arkansas for Medical Sciences, Little Rock, AR 144 TTF-1, but Not p53, Is Helpful in Distinguishing Moderately Differentiated Neuroendocrine Carcinoma of the Larynx from Medullary Carcinoma of the Thyroid (1002) MS Hirsch, WC Faquin, JF Krane Brigham and Women's Hospital, Boston, MA; Massachusetts General Hospital, Boston, MA 145 Leiomyosarcoma(LMS) of the Larynx, an Usual Sarcoma in an Unusual Site: Report of 4 Cases (32) C Della Rocca, S Romeo, F Maggiani, G Montrone, S Berni, B Pini "La Sapienza" University, Rome, Italy 146 Ceruminal Gland Carcinomas: A Clinicopathologic Study of 17 Cases (1008) BL Nelson, LDR Thompson, L Barnes Armed Forces Institute of Pathology, Washington, DC; Presbyterian Univ. Hospital, Pittsburgh, PA 147 Spindle Cell (Sarcomatoid) Carcinoma of the Ear: A Clinicopathological Study of 57 Case (1005) K Koso-Thomas, LDR Thompson Armed Forces Institute of Pathology, Washington, DC