| AOVM | angiographically occult vascular malformation |
|---|---|
| VEGF/VPF | Vascular endothelial growth factor/ vascular permeability factor |
| VPF/VEGF | Vascular permeability factor/vascular endothelial growth factor |
| ACM | Arnold--Chiari malformation |
| CAVM | cerebral arteriovenous malformation |