Venous hypertension associated with a posterior fossa dural arteriovenous fistula: Another cause of bithalamic lesions on MR images

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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.

Original languageEnglish (US)
Pages (from-to)145-147
Number of pages3
JournalAmerican Journal of Neuroradiology
Issue number1
StatePublished - 1999


All Science Journal Classification (ASJC) codes

  • Clinical Neurology
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

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