POSTER SESSION I Monday, February 28, 2005   —  9:30 AM - 12:00 Noon Convention Center, Exhibit Hall B DERMATOPATHOLOGY 51 Superficial Malignant Peripheral Nerve Sheath Tumors: A Rare and Challenging Diagnosis (368) KH Allison, RM Patel, JR Goldblum, BP Rubin - University of Washington Medical Center, Seattle, WA; Cleveland Clinic Foundation, Cleveland, OH 52 Study of Translocation t(11;18)(q21q21) (API2/MALT1) and Expression of Bcl-10 in Primary Cutaneous Marginal Zone B-Cell Lymphomas (370) S Boluda, F Gallardo, C Barranco, A Munne, V Baena, A Ariza, R Pujol, S Serrano - Hospital del Mar-IMAS; Hospital Universitary Germans Trias i Pujol; Barcelona, Spain 53 Use of Chromogenic In Situ Hybridization (CISH) To Determine Loss of Melastatin Expression in Sentinel Lymph Node Negative Melanoma (378) L Hammock, J Carlson, G Carlson, D Murray, J Ross, T Nazir, C Cohen - Johns Hopkins Hospital, Baltimore, MD; Albany Medical College, Albany, NY; Emory University Hospital, Atlanta, GA 54 Clinicopathologic Significance of Dysadherin Expression in Cutaneous Malignant Melanoma: Immunohistochemical Analysis of 115 Cases (390) A Nishizawa, Y Nakanishi, Y Sasajima, N Yamazaki, A Yamamoto, Y Kanai, S Hirohashi - National Cancer Center Research Institute, Tokyo, Japan; National Cancer Center Hospital, Tokyo, Japan 55 Difference of C-kit (CD117) Immunohistochemical Expression in Benign Langerhans Cells in the Skin and Langerhans Cell Histiocytosis (393) EM Sagatys, CA Keehn, FK Khalil, S Saeed, MB Morgan - University of South Florida College of Medicine, Tampa, FL