segmentale Agenesie der Arteria carotis interna

Co-existence

of persistent primitive trigeminal artery and another primitive carotid-basilar anastomosis associated with segmental agenesis of the ipsilateral internal carotid artery: a case report. Magnetic resonance angiography. Stereoscopic images of 3D time-of-flight magnetic resonance angiography showing segmental agenesis of the right internal carotid artery (ICA). The ipsilateral primitive trigeminal artery supplies the distal segments of the ICA and the dysplastic ipsilateral vertebral artery (VA). The arrow indicates the VA union

Co-existence

of persistent primitive trigeminal artery and another primitive carotid-basilar anastomosis associated with segmental agenesis of the ipsilateral internal carotid artery: a case report. Magnetic resonance angiography. Stereoscopic images of 3D time-of-flight magnetic resonance angiography showing the absence of the cervical segment of the right internal carotid artery. The ipsilateral vertebral artery appears to arise from the common carotid artery