<unk>  can be diagnosed through the cerebral venous sinus thrombosis with collateral drainage.<unk>  can also be found diagnosed with Sturge–Weber syndrome and can be found through leptomeningeal angiomatosis. Demyelinating disease has also been found to enlarge medulla veins.
Developmental venous anomaly
Dural arteriovenous fistula
Vascular malformation
Dural ectasia
Cavernous venous malformation
Vascular tumor
Arteriovenous fistula
Pseudoaneurysm