It is still unclear whether<unk> s are congenital or acquired. Current evidence supports transverse-sigmoid sinus junction<unk>  malformations are acquired defects, occurring in response to thrombosis and collateral revascularization of a venous sinus.
Dural arteriovenous fistula
Arteriovenous fistula
Pseudoaneurysm
Developmental venous anomaly
Dural ectasia
Cavernous venous malformation
Subungual hematoma
Angiofibroma of soft tissue