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Venous Abnormalities Leading to Tinnitus: Imaging Evaluation.

Michael A Reardon1, Prashant Raghavan2

  • 1Neuroradiology Division, Department of Radiology & Medical Imaging, University of Virginia, Charlottesville, VA, USA.

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Summary

Venous anomalies are frequently found in imaging for pulsatile tinnitus. These include conditions like idiopathic intracranial hypertension and sigmoid sinus abnormalities, which are discussed in detail.

Keywords:
Dehiscent jugular bulbDehiscent sigmoid sinusIdiopathic intracranial hypertensionPosterior fossa emissary veinsSigmoid sinus diverticulumTinnitus

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Area of Science:

  • Radiology
  • Neurology
  • Vascular Medicine

Background:

  • Pulsatile tinnitus can be caused by various venous anomalies.
  • Imaging is crucial for diagnosing the underlying cause of pulsatile tinnitus.

Purpose of the Study:

  • To review common venous anomalies associated with pulsatile tinnitus.
  • To discuss the relationship between sigmoid sinus wall anomalies and idiopathic intracranial hypertension.

Main Methods:

  • Review of imaging findings in patients with pulsatile tinnitus.
  • Discussion of diagnostic criteria for identified venous anomalies.

Main Results:

  • Venous anomalies are the most common imaging finding in pulsatile tinnitus work-up.
  • Idiopathic intracranial hypertension, sigmoid sinus wall anomalies, stenosis, jugular bulb anomalies, and emissary veins are key diagnoses.
  • A specific association between sigmoid sinus wall anomalies and idiopathic intracranial hypertension is highlighted.

Conclusions:

  • Imaging plays a vital role in identifying venous causes of pulsatile tinnitus.
  • Understanding these anomalies aids in diagnosis and management.
  • Sigmoid sinus wall anomalies warrant consideration in patients with pulsatile tinnitus and potential idiopathic intracranial hypertension.