A case of intracranial dural arteriovenous fistula presenting with brainstem infarction
Oishi, H.; Horinaka, N.; Shmizu, T.; Ozaki, Y.; Arai, H.
No Shinkei Geka. Neurological Surgery 33(11): 1095-1099
2005
ISSN/ISBN: 0301-2603 PMID: 16277223 Document Number: 592473
A 68-year-old female presented with the disturbance of brainstem function. Brain T2 weighted and FLAIR (fluid-attenuated inversion recovery) magnetic resonance imaging revealed the hyperintensity signal of the medulla oblongata, which led to diagnosis of brainstem infarction. Diagnostic cerebral angiography showed the dural arteriovenous fistula (DAVF) developed on the left transverse sinus (TS). Venous drainage route was consisted of retrograde leptomeningieal venous reflux of the cerebrum and spinal perimedullary vein via superior petrosal sinus. Venous hypertension of the brainstem was relieved by transvenous platinum coil selective embolization of superior petrosal sinus. The correct analysis of venous drainage pattern is essential for the curative endovascular surgery.