POSTER SESSION I Monday, February 28, 2005   —  9:30 AM - 12:00 Noon Convention Center, Exhibit Hall B NEUROPATHOLOGY 190 Changes in the Internal Granular Cell Layer of the Cerebellum in Progressive Multifocal Leukoencephalopathy in 3 Patients with AIDS (1345) H Ghaffar, RJ Hicks, LA Moral - Baystate Medical Center/Tufts University School of Medicine, Springfield, MA 191 Immunoreactivity for Claudin-1 Can Help Distinguish Meningiomas from Potential Histologic Mimics (1346) HP Hahn, EA Bundock, JL Hornick - Brigham & Women's Hospital; Harvard Medical School, Boston, MA 192 Proteomic Analysis of Cerebrospinal Fluid Discriminates Malignant and Non-Malignant Disease of the Central Nervous System and Identifies Specific Protein Markers (1352) SE Mendrinos, JDL Nolen, DJ Brat - Harvard Medical School, Boston, MA; Emory University, Atlanta, GA