Nakamata Akihiro, Yogi Akira, Harakuni Tsuyoshi, Ishigami Kousei, Murayama Sadayuki
Department of Radiology, Urasoe General Hospital, 4-16-1 Iso, Urasoe, Okinawa 901-2132, Japan.
Department of Radiology, Graduate School of Medical Science, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa 903-0215, Japan.
Radiol Case Rep. 2019 Jul 18;14(9):1167-1170. doi: 10.1016/j.radcr.2019.06.027. eCollection 2019 Sep.
We report a case of symptomatic jugular venous reflux (JVR) with dilatation of left superior ophthalmic vein (SOV), mimicking cavernous dural arteriovenous fistula (AVF). Severe JVR was caused by an AVFfor hemodialysis access and the narrowing of the left brachiocephalic vein. In-flow signals were found from the left internal jugular vein to left SOV on magnetic resonance angiography, and T1-weighted image and T2-weighted images demonstrated flow voids in bilateral sigmoid sinuses and confluence of sinuses due to rapid retrograde venous flow. We would like to emphasize that the presence of in-flow signals/flow voids in the venous sinuses may be the key imaging clues to distinguish JVR with dilatation of the SOV from cDAVF.
我们报告一例有症状的颈静脉反流（JVR）伴左上眼静脉（SOV）扩张的病例，其表现类似海绵窦硬脑膜动静脉瘘（AVF）。严重的JVR是由用于血液透析通路的AVF和左头臂静脉狭窄引起的。磁共振血管造影显示从左颈内静脉到左SOV有流入信号，T1加权像和T2加权像显示由于快速逆行静脉血流，双侧乙状窦和窦汇出现血流空洞。我们想强调的是，静脉窦中流入信号/血流空洞的存在可能是将伴有SOV扩张的JVR与海绵窦硬脑膜动静脉瘘（cDAVF）区分开来的关键影像学线索。
