Hyrtl’s fissure

Hyrtl's fissure (also known as tympanomeningeal fissure) is a congenital infra-labyrinthic fissure. It is a very rare cause of spontaneous CSF ottorhoea.

Radiographic features

CT
  • this can be diagnosed on axial slices and coronal reformations
  • CT cisternography and radionuclide cisternography can diagnose this rare condition
MRI
  • heavily T2 weighted images are helpful in diagnosis

Treatment

  • once the diagnosis is established attempt for closure of fissure can be planned through natural or synthetic materials
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Article information

rID: 25517
Section: Pathology
Tags: stub, refs, cases
Synonyms or Alternate Spellings:
  • Hyrtl’s fissures
  • Hyrtl fissure

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