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The marginal sinus normal anatomy and involvement with arteriovenous fistulae

A J Evans1, D F Kallmes, M E Jensen

  • 1University of Virginia Health Sciences Center, Department of Radiology; Charlottesville, Virginia, USA.

Interventional Neuroradiology : Journal of Peritherapeutic Neuroradiology, Surgical Procedures and Related Neurosciences
|August 5, 2010
PubMed
Abstract

Insights

The marginal sinus, a rare dural venous sinus near the foramen magnum, can be involved in dural arteriovenous fistulae (AVF). Successful treatment of these AVFs was achieved through transvenous packing of the marginal sinus.

Area of Science:

  • Neurosurgery
  • Vascular Neurology
  • Radiology

Background:

  • The marginal sinus is an infrequently recognized dural venous sinus located at the rim of the foramen magnum.
  • Understanding its anatomy is crucial for neurointerventionalists treating associated dural arteriovenous fistulae (AVF).

Purpose of the Study:

  • To report on the clinical presentation, imaging findings, and treatment outcomes of two patients with marginal sinus dural AVF.
  • To review the literature and describe the anatomy of the marginal sinus and its variations in cranial venous drainage.

Main Methods:

  • Case report of two patients with marginal sinus dural AVF, detailing their signs, symptoms, and angiographic appearance.
  • Literature review focusing on the anatomy of the marginal sinus and its role in venous drainage.
  • Presentation of angiograms illustrating normal anatomical variants.

Main Results:

  • Dural arteriovenous fistulae (AVF) were identified involving the marginal sinus as the primary venous receptacle in two patients.
  • The marginal sinus connects to the occipital sinus superiorly and typically drains into the sigmoid sinus.
  • Transvenous packing of the marginal sinus effectively treated the dural AVF in both cases.

Conclusions:

  • The marginal sinus is a rare but significant dural venous sinus that can be affected by dural AVF.
  • Accurate identification of marginal sinus involvement in dural AVF is key to enabling safe and effective therapeutic interventions.

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