title: Paraganglioma in the cauda equina region.
abstract: Some new ultrastructural observations are documented in paraganglioma in the cauda equina region. These include the presence of nerve fibers in the tumor capsule, clear vesicles and tubulo-vesicular structures in some cytoplasmic processes in the tumor, fenestrated endothelial cells, and numerous tubular bodies in some endothelial cells.
mesh_terms: D000328:Adult; D002420:Cauda Equina; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D010235:Paraganglioma / Q000473:pathology* / Q000648:ultrastructure; D013120:Spinal Cord Neoplasms / Q000473:pathology* / Q000648:ultrastructure