PT  - JOURNAL ARTICLE
AU  - van Rooij, W.J.
AU  - Nijenhuis, R.J.
AU  - Peluso, J.P.
AU  - Sluzewski, M.
AU  - Beute, G.N.
AU  - van der Pol, B.
TI  - Spinal Dural Fistulas without Swelling and Edema of the Cord as Incidental Findings
AID  - 10.3174/ajnr.A3082
DP  - 2012 Nov 01
TA  - American Journal of Neuroradiology
PG  - 1888--1892
VI  - 33
IP  - 10
4099  - http://www.ajnr.org/content/33/10/1888.short
4100  - http://www.ajnr.org/content/33/10/1888.full
SO  - Am. J. Neuroradiol.2012 Nov 01; 33
AB  - 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