Uchino A, Egashira R, Nomiyama K, Takase Y, Mineta T, Kudo S
Department of Diagnostic Radiology, Saitama Medical University, International Medical Center; Saitama, Japan -
Neuroradiol J. 2008 Jun 3;21(3):423-7. doi: 10.1177/197140090802100320.
A 53-year-old asymptomatic man underwent cranial MR imaging to rule out cerebrovascular disease. On T2-weighted axial images abnormal flow voids were detected at the right cavernous sinus, suggesting a dural carotid-cavernous fistula (CCF). On the MR angiogram, abnormal high intensity signals were observed at the right cavernous sinus and the left transverse-sigmoid (T-S) sinus, suggestive of coexisting right dural CCF and dural arteriovenous fistula (AVF) of the left T-S sinus. Selective cerebral angiography of the left external carotid artery revealed abnormal flow in the right cavernous sinus caused by the dural AVF of the left T-S sinus via the right inferior petrosal sinus due to occlusion of both the distal left sigmoid sinus and proximal right internal jugular vein.
一名53岁无症状男性接受头颅磁共振成像以排除脑血管疾病。在T2加权轴位图像上，右侧海绵窦检测到异常血流信号缺失，提示存在硬脑膜动静脉瘘（CCF）。在磁共振血管造影上，右侧海绵窦及左侧横窦-乙状窦（T-S窦）观察到异常高强度信号，提示并存右侧硬脑膜CCF及左侧T-S窦硬脑膜动静脉瘘（AVF）。左侧颈外动脉选择性脑血管造影显示，由于左侧乙状窦远端及右侧颈内静脉近端闭塞，左侧T-S窦硬脑膜AVF经右侧岩下窦导致右侧海绵窦血流异常。
