Non-Sinus Type Dural Arteriovenous Fistula: Others

The clinical manifestations of dural arteriovenous fistulas (dAVFs) are highly variable and dependent on the hemodynamic properties location fistula. locations fistula numerous include cavernous sinus, transverse–sigmoid superior sagittal inferior petrosal sinuses, anterior condylar confluence, tentorium, cranial fossa, middle foramen magnum, cranio-cervical junction, convexity, spinal cord. These dAVFs can be divided into two types, “sinus type” “non-sinus type,” based their communication with shunts cerebral veins. sinus type involves direct between arterial branch one sometimes leading to recruitment cortical On other hand, non-sinus is embedded dura, drainage always involving a vein no any sinus. Treatment options for these types differ; sinus-type require normally obliteration occlusion recruited veins, while non-sinus-type embolization vein. Accurately classifying fistula, or type, critical developing proper treatment plan. This review describes characteristics those unusual illustrative cases.