This study was supported by a clinical research grant provided by Seoul National University Boramae Medical Center.
Two cases of petrosquamosal sinus in the temporal bone presented as perioperative finding †
Article first published online: 13 JAN 2011
Copyright © 2011 The American Laryngological, Rhinological, and Otological Society, Inc.
Volume 121, Issue 2, pages 381–384, February 2011
How to Cite
Yong-Hwi An, Wee, J. H., Han, K.-H. and Kim, Y. H. (2011), Two cases of petrosquamosal sinus in the temporal bone presented as perioperative finding . The Laryngoscope, 121: 381–384. doi: 10.1002/lary.21369
- Issue published online: 26 JAN 2011
- Article first published online: 13 JAN 2011
- Manuscript Accepted: 23 SEP 2010
- Manuscript Received: 10 AUG 2010
- Petrosquamosal sinus;
- emissary vein;
- temporal bone
The petrosquamosal (PSS) is an embryonic emissary vein of the temporal bone in humans and connects the intra- and extracranial venous networks. Few reports in the recent literature provide detailed descriptions of PSSs that are found before or during surgeries. We report the presence of PSS in two patients with chronic otitis media. An abnormal vessel was found originating from the sigmoid sinus of each patient. The vessels coursed anteroinferiorly over the superior portion of the temporal bone and terminated near the posterior part of the temporomandibular joint. The clinical significance of PSS and a brief literature review are presented.