l. [5] have shown similar cognitive improvement follow- dural arteriovenous fistulas with cortical venous drainage: new managementР using Onyx. AJNR Am J Neuroradiol 2008;29:235.Рing dAVF embolization in five patients presenting with dementia. [11] Sakamoto S, Ohba S, Shibukawa M, Kiura Y, Okazaki T, Kurisu K. Course of appar-РThe majority of their patients also had deep venous reflux, but ent diffusion coefficient values in cerebral edema of dural arteriovenous fistulaРpresented with more widespread cerebral dysfunction and diffuse before and after treatment. Clin Neurol Neurosurg 2008;110:400.Р Please cite this article in press as: Sugrue PA, et al. High-grade dural arteriovenous fistula simulating a bilateral thalamic neoplasm. ClinР Neurol Neurosurg (2009), doi:10.1016/j.clineuro.2009.05.004