Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Dural Arteriovenous Fistulas: A Characteristic Pattern of Edema and Enhancement of the Medulla on MRI

Dural Arteriovenous Fistulas: A Characteristic Pattern of Edema and Enhancement of the Medulla on... CLINICALREPORT ADULT BRAIN Dural Arteriovenous Fistulas: A Characteristic Pattern of Edema and Enhancement of the Medulla on MRI X A.Z. Copelan, X A. Krishnan, X H. Marin, and X R. Silbergleit ABSTRACT SUMMARY: Medullary edema with enhancement is rarely reported at initial MR imaging in intracranial dural arteriovenous fistulas. We report a series of 5 patients with dural arteriovenous fistulas, all of whom demonstrated a characteristic pattern of central medullary edema and medullary enhancement at initial MR imaging. Cognard type V dural arteriovenous fistula, defined by drainage into the perimedullary veins and the veins surrounding the brain stem, is a rare yet well-described pathologic entity. Even more rarely reported, however, is its clinical presentation with predominantly bulbar symptoms and MR imaging findings of central medullary edema with enhancement. This constellation of findings frequently leads to a convoluted clinical picture, prompting work-up for alternative disease processes and delaying diagnosis. Because an expedited diagnosis is critical in preventing poor outcomes, it is paramount to make the referring physician and neuroradiologist more cognizant of this rare-yet-characteristic imaging manifestation of dural arteriovenous fistula. ABBREVIATION: DAVF  dural arteriovenous fistula ntracranial dural arteriovenous fistulas (DAVFs) result from a the initial imaging test ordered by http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Neuroradiology American Journal of Neuroradiology

Dural Arteriovenous Fistulas: A Characteristic Pattern of Edema and Enhancement of the Medulla on MRI

Download PDF
7 pages

Loading next page...
 
/lp/american-journal-of-neuroradiology/dural-arteriovenous-fistulas-a-characteristic-pattern-of-edema-and-xZMUF00i2M
Publisher
American Journal of Neuroradiology
Copyright
© 2018 by American Journal of Neuroradiology
ISSN
0195-6108
eISSN
1936-959X
DOI
10.3174/ajnr.A5460
Publisher site
See Article on Publisher Site

Abstract

CLINICALREPORT ADULT BRAIN Dural Arteriovenous Fistulas: A Characteristic Pattern of Edema and Enhancement of the Medulla on MRI X A.Z. Copelan, X A. Krishnan, X H. Marin, and X R. Silbergleit ABSTRACT SUMMARY: Medullary edema with enhancement is rarely reported at initial MR imaging in intracranial dural arteriovenous fistulas. We report a series of 5 patients with dural arteriovenous fistulas, all of whom demonstrated a characteristic pattern of central medullary edema and medullary enhancement at initial MR imaging. Cognard type V dural arteriovenous fistula, defined by drainage into the perimedullary veins and the veins surrounding the brain stem, is a rare yet well-described pathologic entity. Even more rarely reported, however, is its clinical presentation with predominantly bulbar symptoms and MR imaging findings of central medullary edema with enhancement. This constellation of findings frequently leads to a convoluted clinical picture, prompting work-up for alternative disease processes and delaying diagnosis. Because an expedited diagnosis is critical in preventing poor outcomes, it is paramount to make the referring physician and neuroradiologist more cognizant of this rare-yet-characteristic imaging manifestation of dural arteriovenous fistula. ABBREVIATION: DAVF  dural arteriovenous fistula ntracranial dural arteriovenous fistulas (DAVFs) result from a the initial imaging test ordered by

Journal

American Journal of Neuroradiology – American Journal of Neuroradiology

Published: Feb 1, 2018

References

  • MR imaging findings of intracranial dural arteriovenous fistulas: relations with venous drainage patterns
    Kwon