Dilated Vein of the Filum Terminale on MRI: A Marker for Deep Lumbar and Sacral Dural and Epidural Arteriovenous Fistulas.
Brinjikji WC A HilditchJonathan M MorrisAdam Andrew DmytriwHarry J CloftVitor Mendes PereiraGiuseppe LanzinoTimo KringsPublished in: AJNR. American journal of neuroradiology (2018)
The presence of a dilated vein of the filum terminale can accurately localize a spinal dural arteriovenous fistula/spinal epidural arteriovenous fistula to the lower lumbar or sacral spine in patients being evaluated for such lesions. This finding can be used to facilitate both noninvasive and conventional spinal angiography.