Mizutani Katsuhiro, Akiyama Takenori, Yoshida Kazunari
Department of Neurosurgery, Keio University School of Medicine, Japan
Department of Neurosurgery, Keio University School of Medicine, Japan.
Interv Neuroradiol. 2016 Aug;22(4):452-6. doi: 10.1177/1591019916641903. Epub 2016 Apr 15.
In the embryo, the primary head sinus (PHS) is the first venous drainage channel in the craniocervical region. During embryonic development, this channel regresses and usually disappears completely; accordingly, a remnant of the PHS is an extremely rare condition and has been described in only a few previous studies. Here, we report a case of remnant of the PHS with a dural arteriovenous fistula (dAVF) in an adult. The remnant of the PHS had penetrated the petrous bone to run from the middle fossa to the jugular bulb and served as a drain for the middle fossa dAVF. We used digital subtraction angiography and reconstructed cone-beam computed tomography in 3D rotational angiography to obtain detailed anatomic information about the remnant PHS and additionally scrutinised and discussed its features.
在胚胎期，原发性头部窦道（PHS）是颅颈区域的首个静脉引流通道。在胚胎发育过程中，该通道会退化并通常完全消失；因此，PHS残余是一种极其罕见的情况，此前仅有少数研究对此进行过描述。在此，我们报告一例成年患者存在伴有硬脑膜动静脉瘘（dAVF）的PHS残余病例。PHS残余穿透岩骨，从中颅窝延伸至颈静脉球，并作为中颅窝dAVF的引流通道。我们采用数字减影血管造影术，并在三维旋转血管造影中重建锥形束计算机断层扫描，以获取关于PHS残余的详细解剖信息，并对其特征进行了进一步审视和讨论。
