intermediate filament markers ( cytokeratin , vimentin , neurofilament , and glial fibrillary acidic protein ) and epithelial markers ( epithelial membrane antigen and monoclonal antibody lu-5 ) demonstrated that colloid cyst epithelium has a unique antigenic profile in contrast to that of choroid plexus or glial tissue .
C0021770
intermediate filament
C0017626
glial fibrillary acidic protein