Medullary Edema and Enhancement with a Straight Upper Border in Cases of Dural Arteriovenous Fistulas

We read the recent article by Copelan et al,[1][1] “Dural Arteriovenous Fistulas: A Characteristic Pattern of Edema and Enhancement of the Medulla on MRI” with great interest. The authors describe an unusual but characteristic imaging appearance of patchy medullary edema and enhancement with