Persistent petrosquamosal sinus: underlying cause of otitic hydrocephalus with lateral sinus thrombosis

Int J Pediatr Otorhinolaryngol. 2013 Nov;77(11):1908-11. doi: 10.1016/j.ijporl.2013.08.034. Epub 2013 Sep 8.

Abstract

Lateral sinus thrombosis (LST) occurs when a middle ear infection disseminates directly via bone erosion or disseminates indirectly through the venous networks. The petrosquamosal sinus (PSS) is the residual accessory dural sinus connecting intracranial to extracranial drainage. This report describes a case of a patient with persistent PSS running through the mastoid in context of otitic hydrocephalus with LST. To identify PSS, enhanced CT and reconstructed image from CT venography were more useful than MRI. The possibility of persistent PSS running through the mastoid should be considered if LST without marked inflammation and bone erosion is noted.

Keywords: Acute otitis media; Lateral sinus thrombosis; Otitic hydrocephalus; Petrosquamosal sinus; Petrosquamous sinus.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Acute Disease
  • Anti-Bacterial Agents / therapeutic use
  • Child, Preschool
  • Contrast Media
  • Cranial Sinuses / abnormalities*
  • Diagnostic Imaging / methods
  • Disease Progression
  • Follow-Up Studies
  • Humans
  • Hydrocephalus / diagnosis
  • Hydrocephalus / etiology*
  • Hydrocephalus / therapy
  • Lateral Sinus Thrombosis / diagnosis
  • Lateral Sinus Thrombosis / etiology*
  • Lateral Sinus Thrombosis / therapy
  • Magnetic Resonance Imaging / methods
  • Male
  • Mastoiditis / diagnosis*
  • Mastoiditis / surgery
  • Middle Ear Ventilation / methods*
  • Otitis Media / complications
  • Otitis Media / diagnosis*
  • Otitis Media / drug therapy
  • Phlebography / methods
  • Rare Diseases
  • Recurrence
  • Risk Assessment
  • Temporal Bone / abnormalities
  • Temporal Bone / blood supply*
  • Tomography, X-Ray Computed / methods
  • Treatment Outcome

Substances

  • Anti-Bacterial Agents
  • Contrast Media