What question did this study set out to answer?

To highlight a rare spinal dural arteriovenous fistula as a cause of myelopathy following trauma and emphasize the role of early diagnosis and treatment.

March 6, 2026Journal of Clinical Interventional Radiology ISVIR0 citationsOpen Access

Spinal Dural Arteriovenous Fistula Supplied by a Lateral Sacral Artery: A Rare Cause of Progressive Myelopathy Following Trauma

SYS. N. H. Mohd Yusof MAMuda As MNM. Syafeeq Md Noh

Key Points

To highlight a rare spinal dural arteriovenous fistula as a cause of myelopathy following trauma and emphasize the role of early diagnosis and treatment.
Case report of a 47-year-old woman with bilateral lower limb weakness after trauma.
MRI was used to detect long-segment cord edema.
Digital subtraction angiography identified the AVF supplied by the lateral sacral artery.
Endovascular embolization was performed for treatment.
Complete occlusion of the arteriovenous fistula was achieved after embolization.
The patient experienced full neurological recovery.
Neuropathic pain resolved during a follow-up period of 6 months.

Abstract

Abstract Spinal dural arteriovenous fistulas (AVFs) are rare but treatable causes of progressive myelopathy. Early diagnosis is critical to prevent irreversible neurological deficits. We report a 47-year-old woman who developed progressive bilateral lower limb weakness and sphincter dysfunction following trauma. MRI showed long-segment cord edema with serpiginous flow voids. Digital subtraction angiography identified a spinal dural AVF supplied by a branch of the left lateral sacral artery. Endovascular embolization achieved complete occlusion, with complete neurological and neuropathic pain recovery during 6 months of follow-up. This case underscores the importance of thorough angiography, including sacral feeders, in progressive myelopathy.

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