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PT  - JOURNAL ARTICLE
AU  - Horiuchi, Masahiro
AU  - Kamo, Tsutomu
AU  - Sugihara, Hiroshi
AU  - Fujisawa, Koshiro
AU  - Takahashi, Yoichi
AU  - Ikeda, Ritsuko
AU  - Morishima, Hiroyuki
AU  - Yamaguchi, Yoshitaro
TI  - An Adult Case of Congenital External Carotid–Jugular Arteriovenous Fistula with Reversible Circulatory Insufficiency in the Cerebellum and Lower Brain Stem
DP  - 2001 Feb 01
TA  - American Journal of Neuroradiology
PG  - 273--276
VI  - 22
IP  - 2
4099  - http://www.ajnr.org/content/22/2/273.short
4100  - http://www.ajnr.org/content/22/2/273.full
SO  - Am. J. Neuroradiol.2001 Feb 01; 22
AB  - Summary: A 27-year-old man with congenital external carotid–jugular arteriovenous fistula presented with a diminished level of consciousness and an ataxic gait. Axial fluid-attenuated inversion-recovery (FLAIR) MR imaging revealed venous congestion, a dilated right jugular vein, and an area of high signal intensity in the brain stem and cerebellum. Angiography showed a dilated right external carotid artery and jugular vein and the presence of a fistula. After coil embolization of the fistula, axial MR FLAIR images showed only a few areas of high signal intensity in the brain stem and cerebellum. The causal factor was venous congestion in the inferior petrosal sinus and basilar plexus due to high blood pressure in the jugular vein. This case is presented for its unusual clinical and radiologic findings.