- Or... An arteriovenous malformation.

Unless there's an arteriovenous fistula.

- Arteriovenous malformation. - Intradural. Compressing his spine.

She had an arteriovenous malformation in her brain.

He's coming in to have an arteriovenous fistula installed

Or, uh, an arteriovenous fistula, which is an abnormal channel between the vessels.

Well, uh, vasculitis could be a cause. Or, uh, an arteriovenous fistula,

Three months ago a seven-year-old boy died... while I was repairing something called an arteriovenous malformation... and I was drinking the night before.