RT Journal Article
SR Electronic
T1 Venous Hypertension Associated with a Posterior Fossa Dural Arteriovenous Fistula: Another Cause of Bithalamic Lesions on MR Images
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 145
OP 147
VO 20
IS 1
A1 Glen P. Greenough
A1 Alex Mamourian
A1 Robert E. Harbaugh
YR 1999
UL http://www.ajnr.org/content/20/1/145.abstract
AB Summary: We report a case of a posterior fossa arteriovenous fistula (AVF) with bithalamic hyperintensity on MR images. The thalamic abnormality improved after surgery, suggesting reversible venous hypertension as the pathogenesis of the finding, as opposed to infarction. This manifestation of a posterior fossa AVF should be considered in the differential diagnosis of bilateral thalamic disease.