title: Choroid plexus papillomas and their fine structure.
mesh_terms: D001099:Arachnoid; D002551:Cerebral Ventricle Neoplasms / Q000648:ultrastructure*; D002648:Child; D002831:Choroid Plexus; D006801:Humans; D007223:Infant; D008297:Male; D008577:Meningeal Neoplasms / Q000556:secondary; D010212:Papilloma / Q000556:secondary / Q000648:ultrastructure*; D010841:Pia Mater