RT Journal Article SR Electronic T1 Dural arteriovenous fistula at the craniocervical junction with perimedullary venous drainage. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1137 OP 1141 VO 17 IS 6 A1 Mascalchi, M A1 Scazzeri, F A1 Prosetti, D A1 Ferrito, G A1 Salvi, F A1 Quilici, N YR 1996 UL http://www.ajnr.org/content/17/6/1137.abstract AB MR imaging showed swelling and diffuse signal changes in the spinal cord in two patients with progressive myelopathy. MR angiography revealed slow-flow perimedullary vessels extending to the skull base, which are consistent with drainage vessels of a dural arteriovenous fistula at the craniocervical junction. This fistula was subsequently seen in both patients on selective arteriograms of the ascending pharyngeal and vertebral arteries.