Termination of the inferior petrosal sinus: An anatomical variant

Philippe Gailloud, Jean H.D. Fasel, Michel Muster, François Desarzens, Daniel A. Ruefenacht

Research output: Contribution to journalArticlepeer-review


Unusual caudal terminations of the inferior petrosal sinus (IPS) characterized by an extracranial extension joining the internal jugular vein up to 40 into below the external skull base are reported. This variation was observed bilaterally on an anatomical specimen and unilaterally on four patients during diagnostic cerebral angiography. It may be considered an accessory internal jugular vein and, if present, may allow for an alternate endovascular access to the IPS.

Original languageEnglish (US)
Pages (from-to)92-96
Number of pages5
JournalClinical Anatomy
Issue number2
StatePublished - 1997
Externally publishedYes


  • dural sinus
  • interventional neuroradiology
  • jugular vein
  • variation

ASJC Scopus subject areas

  • Anatomy
  • Histology


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