Department of Diagnostic Radiology, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan.
Cerebellum. 2011 Jun;10(2):204-7. doi: 10.1007/s12311-011-0267-0.
The posterior inferior cerebellar artery (PICA) is extremely rarely supplied by the artery passing through the hypoglossal canal. This anomalous artery can arise from the cervical internal carotid artery or ascending pharyngeal artery (APA). We present what we believe is the first report of PICA supplied by the jugular branch of the APA that passes through the medial side of the jugular foramen pars vascularis, diagnosed using magnetic resonance angiography. To avoid ischemic brain complications during head and neck surgeries and interventional radiologic procedures, preoperative recognition of anomalously originating pial arteries from the APA is important.
小脑后下动脉（PICA）极少见由通过舌下神经管的动脉供应。这种异常的动脉可以发自颈内动脉或咽升动脉（APA）。我们报告首例通过颈静脉孔血管部内侧走行的咽升动脉颈内静脉支供应的 PICA，通过磁共振血管造影诊断。为避免头颈部手术和介入放射学操作期间发生脑缺血并发症，术前识别源自 APA 的异常起源的脑膜动脉非常重要。
