A 52-year-old man with a history of factor V Leiden thrombophilia, persistent headaches and papilloedema presented with worsening vision and confusion. MRI and MR angiography of the brain at the time of this presentation showed findings concerning for transverse sinus thrombosis and an associated dural arteriovenous fistula. Dural venous sinus thrombosis can lead to the formation of a dural arteriovenous fistula, which must be considered in the differential diagnosis for intracranial hypertension in patients with thrombophilia.
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Contributors Each of the contributing authors participated in image analysis, manuscript drafting and manuscript revision.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed. This article was reviewed by Robert Simister, London, UK.
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