Cervical extradural arteriovenous fistula with radiculopathy managed endovascularly

Surg Neurol Int. 2023 Jul 28:14:265. doi: 10.25259/SNI_306_2023. eCollection 2023.

Abstract

Background: Extradural arteriovenous fistulas (AVFs) of the cervical spine are extremely rare, and typically manifest as slowly progressive myelopathy caused by mass effect. This is a unique case of extradural AVF of the cervical spine manifesting with purely radicular symptoms and treated endovascularly with coil and liquid embolization.

Case description: A 55-year-old woman presented with neck pain and right upper extremity radiculopathy persisting for 9 months. Imaging studies demonstrated an AVF spanning from C4-C6 with extension into the C5-C6 foramen supplied primarily from the deep cervical branch of the costocervical trunk. The patient underwent successful coil and liquid (Onyx) embolization. Six-week postoperatively, the patient's symptoms completely resolved and magnetic resonance imaging and angiographic imaging confirmed complete obliteration of the fistula.

Conclusion: While extradural AVFs typically present with myelopathic symptoms, they may present with solely radicular symptoms and can be successfully treated endovascularly.

Keywords: Arteriovenous fistula; Cervical; Extradural; Radiculopathy; Therapeutic embolization.

Publication types

  • Case Reports