title: Nontraumatic cerebrospinal fluid rhinorrhoea from a fistula between the trigeminal cistern and sphenoid sinus.
abstract: The radiological appearances of the trigeminal cistern on metrizamide cisternography and metrizamide CT cisternography are described. The frequent demonstration of this cistern on metrizamide cisternography is emphasised. A case of nontraumatic CSF rhinorrhoea produced by a CSF leak between the trigeminal cistern and the sphenoid sinus is described.
mesh_terms: D000368:Aged; D002559:Cerebrospinal Fluid Rhinorrhea / Q000209:etiology*; D003392:Cranial Sinuses / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D005402:Fistula / Q000150:complications*; D006801:Humans; D008793:Metrizamide; D009192:Myelography; D014278:Trigeminal Nuclei / Q000000981:diagnostic imaging / Q000473:pathology*
chemical_list: D008793:Metrizamide