Peri-medullary anterior spinal artery aneurysm associated with cervical pial arterio-venous fistula

Abstract

Spinal arteriovenous fistulas represent a heterogenous group of pathologies and are divided into four categories. Type IV fistulas are further stratified into three groups (IVa, IVb and IVc) according to the number and dimensions of the fistulous vessels. Approximately 10% of these fistulas are associated with aneurysms. However, we are not aware of a previously reported case of an aneurysm associated with a Type IVa fistula with an anterior spinal artery (ASA) feeder at the cervico-medullary junction. We therefore describe our experience with a patient presenting with a ruptured aneurysm associated with a fistula in this location.

Keywords:

• Spinal arteriovenous fistula
• subarachnoid haemorrhage
• peri-medullary fistula
• anterior spinal artery aneurysm

Disclosure statement

No potential conflict of interest was reported by the authors.