March 3, 2026Open Access

Endovascular treatment of a sacral cerebrospinal fluid–venous Fistula using transvenous embolization: A case report

Key Points

Endovascular embolization effectively resolves cerebrospinal fluid-venous fistula in spontaneous intracranial hypotension cases.
The patient was a 41-year-old woman with a rare right S2-S3 CSFVF complicating her SIH condition.
Intervention involved using Onyx for transvenous embolization, successfully managing the atypical anatomical presentation.
This highlights the importance of recognizing CSFVF as a cause of SIH and the viability of endovascular approaches.

Abstract

Cerebrospinal fluid-venous fistula (CSFVF) is an increasingly recognized cause of spontaneous intracranial hypotension (SIH). We present a rare case of a 41-year-old woman with SIH caused by a right S2-S3 CSFVF draining in the right internal iliac vein. Successfully transvenous endovascular embolization using Onyx was performed. This report highlights diagnostic challenges and procedural details, emphasizing the efficacy of endovascular approaches in managing CSFVF in atypical anatomical locations.

Endovascular treatment of a sacral cerebrospinal fluid–venous Fistula using transvenous embolization: A case report

Key Points

Abstract

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