Department of Radiology, University Hospitals Leuven, Belgium.
Eur Radiol. 2009 Dec;19(12):2958-64. doi: 10.1007/s00330-009-1492-5.
An aberrant channel was identified on CT in the petrous bone in four patients presenting with unrelated otological symptoms. These channels occurred unilaterally in each case. In two patients, the channel was seen to run between the sigmoid sinus sulcus and the superior petrosal sinus sulcus; in one of these patients, a vascular structure was identified within this channel on MRI, connecting the sigmoid sinus and the superior petrosal sinus. In the two other patients, an aberrant channel was seen between the superior petrosal sinus sulcus and the posterior genu of the facial nerve canal. There were no symptoms that could be attributed to the presence of these channels.We postulate that these aberrant vascular channels correspond to a persistent embryological vein, the lateral capital vein.
在 4 名表现出与耳部症状无关的患者的岩骨 CT 上发现了异常通道。这些通道在每种情况下均为单侧发生。在 2 名患者中，可见该通道在乙状窦沟和岩上窦沟之间运行；其中 1 名患者的 MRI 上显示该通道内有一个血管结构，连接乙状窦和岩上窦。在另外 2 名患者中，可见异常通道位于岩上窦沟和面神经管后膝之间。这些通道均无症状。我们推测这些异常血管通道对应于持续存在的胚胎静脉，即外侧总静脉。
