颈内动脉包括颅内和颅外两部分。颅外颈段一般无分支,偶见 Vidian 动脉(翼状沟动脉)起于颈内动脉颅骨内的岩段。颈内动脉的异常分支在血管造影中殊为罕见。本文报告6例经造影显示的异常分支;包括咽升动脉,枕动脉,Vidian 动脉,持续存在的变异的舌下动脉,和大脑前动脉起自眼动脉开口平面的变异。咽升动脉为颈外动脉的一小分支,罕有经造影显示起于颈内动脉者。在例一中此动脉起自右侧颈内动脉颈段;例二咽升动脉与枕动脉有一共同干支起自颈内动脉。枕动脉在 Internal carotid artery, including intracranial and extracranial two parts. Extracranial cervical segment is generally unbranched, and occasionally Vidian artery (pterygopalatine artery) in the cranial section of the internal carotid artery. Abnormal branches of the internal carotid artery in angiography is rare. This article reports 6 cases of angiography showed abnormal branches; including the pharyngeal artery, occipital artery, Vidian artery, persistent sublingual artery, and anterior cerebral artery from the opening of the ocular artery variation in the plane. Pharyngeal ascending aorta is a small branch of the external carotid artery, angiography showed rare in the internal carotid artery. In an example, this artery from the right internal carotid artery neck segment; Example 2 pharyngeal ascending artery and occipital artery has a common stem from the internal carotid artery. Occipital artery in