POSTER SESSION I Monday, March 24, 2003   —  9:30 AM - 12:00 Noon Exhibit Hall A - C NEUROPATHOLOGY 192 Central Nervous System Post-Transplant Lymphoproliferative Disorders (1317) AA Castellano-Sanchez, S Li, BW Scheithauer, E Weir, DJ Brat Emory University School of Medicine, Atlanta, GA; Mayo Clinic, Rochester, MN; Johns Hopkins University School of Medicine, Baltimore, MD 193 Discordance in Allelic Losses on Chromosomes 1p and 19q in Gliomas (1318) EA Castilla, RA Prayson, M Hartke, SM Staugaitis, GH Barnett, RR Tubbs Cleveland Clinic, Cleveland, OH 194 Ki67 and P53 as Proliferative Markers of Recurrent Pituitary Adenomas Coorelated with Chromosomal Imbalances (1326) S Latif, A Jawahar, ML Nordberg, MR Fowler Louisiana State University Health Sciences Center, Shreveport, LA 195 Expression of Nuclear Factor-6B (NF-6B), I6B" and Low Affinity NGF Receptor p75 in CNS Schwannomas (1327) WA Lavezzi, DM Vincenti, Q Li, CE Sheehan, JS Ross, J Qian Albany Medical College, Albany, NY 196 Expression of Nuclear Factor-6B (NF-6B) and I6B" in Meningiomas (1337) DM Vincenti, Q Li, WA Lavezzi, CE Sheehan, JS Ross, J Qian Albany Medical College, Albany, NY 197 Overexpression of IGFBP2 in Glioblastoma Is Associated with Increased MMP2 Expression and Tumor Invasion (1339) H Wang, H Wang, W Shen, L Hu, L Ramdas, Y Zhou, WS Liao, GN Fuller, W Zhang M.D. Anderson Cancer Center; University of Texas Medical School-Houston; M.D. Anderson Cancer Center, Houston, TX