POSTER SESSION III Tuesday, February 14, 2006   —  9:30 AM - 12:00 Noon Exhibit Level DERMATOPATHOLOGY 33 Characterization Of Cutaneous Perineuriomas By Immunohistochemistry (386) J Pang, T McCalmont - UCSF, San Francisco, CA; UCSF, San Francisco, CA 34 Cellular Neurothekeoma: Analysis Of 128 Cases (359) JL Hornick, CDM Fletcher - Brigham and Women's Hospital & Harvard Medical School, Boston, MA 35 Cutaneous (D) Primative Neuroectodermal Tumor/Ewing Sarcoma (PE): Same Tumor As Deep PE Or New Entity? 15 Cases (356) T Ehrig, SD Billings, JC Fanburg-Smith - Laboratory of New England, Meriden, CT; Indiana University, Indianapolis, IN; Armed Forces Institute of Pathology, Washington, DC 36 Immunohistochemical And Molecular Analysis Of Dermatofibrosarcoma Protuberans. A Study Of 75 Cases. (375) B Llombart-Cussac, A Llombart-Bosch, JA Lopez-Guerrero, C Monteagudo, O Sanmartin, E Jorda, C Guillen, A Pellin - University of Valencia, Fundacion Instituto Valenciano de Oncologia, Fundacion Instituto Valenciano de Oncologia, Hospital Clinico Universitario, Valencia, Spain 37 Cutaneous Peripheral T-Cell Lymphoma Associated With A Proliferation Of Large B-Cells ("Large B-Cell Rich T-Cell Lymphoma") (381) IW Mattoch, RA Warnke, U Sundram - Stanford University Medical Center, Stanford, CA 38 The Expression Of CD23 In Malignant Lymphoma Of Follicular Center Cell And Marginal Zone Subtypes (376) CM Magro, AN Crowson, J Li - The Ohio State University, Columbus, OH; University of Oklahoma and Regional Medical Laboratory St John Medical Center, Tulsa, OK 39 Pyogenic Granuloma-Like Polypoid Pseudolymphoma Of The Skin: 12 Cases Of A Distinct New Entity (352) JF Dayrit, NS G Goh, E Calonje - St John's Institute of Dermatology, St Thomas' Hospital, Lambeth Palace Road, London, United Kingdom 40 Immunohistochemical Analysis Of Stromal Responses Does Not Distinguish Benign Cutaneous Lymphoid Proliferations From Cutaneous Lymphomas (396) AB Thomas, TL Cibull, L Baldridge, SD Billings, DP O'Malley - Indiana University, Indianapolis, IN 41 Utility Of Immunocharacterization And Molecular Evaluation In The Diagnosis Of Cutaneous Lymphoid Hyperplasia (365) MA Idoate, P Lloret, MD Lozano, G Toledo, A Martinez Penuela, A Panizo, J Pardo - University of Navarra, Pamplona, Navarra, Spain 42 Cutaneous Involvement In T Prolymphocytic Leukemia (377) CM Magro, A Deng, AN Crowson, C Morrison, N Heerma, N Sroa, J Li - The Ohio State University, Columbus, OH; University of Oklahoma and Regional Medical Laboratory St John Medical Center, Tulsa, OK; University of Maryland, Baltimore, MD 43 Leukemia Cutis: A Histologic, Immunohistochemical And Clinical Review (349) TL Cibull, AB Thomas, DP O'Malley, SD Billings - Indiana University, Indianapolis, IN 44 Divergent Expression Of The Chemotactic Receptor ChemR23 In Systemic And Pulmonary Langerhans Cell Histiocytosis (395) A Santoro, W Vermi, F Gentili, S Sozzani, E Riboldi, D Communi, M Parmentier, F Luppi, L Richeldi, F Facchetti - University of Brescia, Brescia, Italy; Institut de Recherche Interdisciplinaire en Biologie Humaine et Moleculaire, Brussels, Belgium; University of Modena and Reggio Emilia, Modena, Italy 45 Characterization of Inflammatory Cells in Fixed Drug Reaction, Erythema Multiforme, Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis Spectrum of Interface Dermatidities (353) M Delaney, SR Tahan Beth Israel Deaconess Medical Center, Boston, MA 46 Detection of Human Herpesviruses in Pityriasis Rosea Skin Biopsies (361) SD Hudnall, T Chen, S Jackson, R Sanchez - University of Texas Medical Branch, Galveston, TX 47 Role of C5b-9 in the Pathogenesis of the Cutaneous Hyalinized Vasculopathies of Diabetes Mellitus and Porphyria Cutanea Tarda (399) KE Vasil, CM Magro, AN Crowson, J Li - The Ohio State University, Columbus, OH; University of Oklahoma and Regional Medical Laboratory St John Medical Center, Tulsa, OK 48 Cutaneous Vasculopathy And Sclerodermoid Reactions In Association With Cytomegalovirus Infection (378) CM Magro, AN Crowson, C Ferri, JL Baran, J Williams, J Li - The Ohio State University, Columbus, OH; University of Oklahoma and Regional Medical Laboratory St John Medical Center, Regional Medical Laboratory and St John Medical Center Tulsa, OK; Ohio University, Athens, OH 49 Psoriasiform Keratosis (394) SN Rudisaile, MA Hurt, DJ Santa Cruz - Cutaneous Pathology, WPC Laboratories, Inc, Maryland Heights, MO; St Louis University School of Medicine, St. Louis, MO 50 Identification of Cutaneous Mast Cells With the Ziehl-Neelsen Stain (370) RS Kulkarni, MG Horenstein - St Barnabas Medical Center, Livingston, NJ; The Dermatology Group, Verona, NJ 51 The Basophil Specific Antibody 2D7 Is Expressed By Local Mastocytosis But Not By The Systemic One (364) MA Idoate, M Ferrer, P Gil, G Toledo, MD Lozano, A Panizo, J Pardo - University of Navarra, Pamplona, Navarra, Spain 52 Comparison Of Chronic Urticaria Patients Responsive And Unresponsive To Antihistamines (392) M Punar, S Patel, M Pasha, JA Carlson - Albany Medical College, Albany, NY