TY - JOUR T1 - Spinal Dural Fistulas without Swelling and Edema of the Cord as Incidental Findings JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1888 LP - 1892 DO - 10.3174/ajnr.A3082 VL - 33 IS - 10 AU - W.J. van Rooij AU - R.J. Nijenhuis AU - J.P. Peluso AU - M. Sluzewski AU - G.N. Beute AU - B. van der Pol Y1 - 2012/11/01 UR - http://www.ajnr.org/content/33/10/1888.abstract N2 - SUMMARY: SDAVFs cause hypertension and hence outflow obstruction in the perimedullary venous system resulting in swelling and edema of the cord followed by dysfunction. Clinical presentation is usually with gradual progressive paraparesis, numbness, and sphincter problems. MR imaging typically demonstrates the dilated perimedullary veins and the swelling and edema of the cord. During the past few years, we incidentally found an SDAVF on MR imaging with dilated perimedullary veins but without swelling and edema of the cord in 5 patients with unrelated presenting clinical symptoms. Spinal angiography confirmed the presence of an SDAVF in all 5 patients. Although the indication was considered questionable, eventually all 5 fistulas were endovascularly or surgically treated, resulting in normalization of the MR images. SDAVFspinal dural arteriovenous fistula ER -