Transdural Segment of the Radicular Vein in Spinal Dural Arteriovenous Fistula

Spinal dural arteriovenous fistula (SDAVF) is the most common spinal vascular shunt lesion [1,2]. SDAVF confines to the lateral group of the epidural spinal shunt which corresponds to DAVFs in the marginal sinus (lateral portion-foramen magnum) with the emissary-bridging vein to the condyloid vein, falcotentorial (vein of Galen), petrosal and basitentorial, Breschet sinus, paracavernous region (embryonic tentorial sinus remnants), intraorbital shunts, and lamina cribriformis [3]