title: Serpentine cauda equina nerve roots.
abstract: Serpentine filling defects caused by redundant nerve roots were demonstrated myelographically in three patients with a nonionic, water-soluble contrast material. All patients had either total obstruction or severe stenosis of the subarachnoid space secondary to extradural lesions.
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009192:Myelography; D009474:Neurons; D013117:Spinal Cord Compression / Q000000981:diagnostic imaging*; D013346:Subarachnoid Space; D013679:Technology, Radiologic