Korean J Otorhinolaryngol-Head Neck Surg.  2009 Jan;52(1):84-87. 10.3342/kjorl-hns.2009.52.1.84.

A Case of Petrosquamosal Sinus: A Rare Emissary Vein of the Temporal Bone

Affiliations
  • 1Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Wonkwang University, Iksan, Korea. pericomo@wku.ac.kr
  • 2Wonkwang Institute for Medical Science, College of Medicine, Wonkwang University, Iksan, Korea.

Abstract

The petrosquamosal sinus (PSS) is a rare emissary vein of the temporal bone. This vein connects dural sinuses with external jugular venous system. This pathway has been known to regress during fetal and early postnatal life however, several cadavaricstudies have revealed that the PSS is a relatively common feature in human. The imaging diagnosis of the PSS, such as digital subtraction angiography or high resolution CT scan, has been rarely reported in humans. We report a case of PSS in a patient with cholesteatoma with a review of literature.

Keyword

Petrosquamosal sinus; Jugular vein; Temporal bone

MeSH Terms

Angiography, Digital Subtraction
Cholesteatoma
Humans
Jugular Veins
Temporal Bone
Veins
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