title: Persistent trigeminal artery communicating with a fetal posterior communicating artery: A case report.
abstract: A persistent trigeminal artery (PTA) is the most common carotid-vertebrobasilar anastomosis. PTA variants terminating on cerebellar arteries instead of the basilar artery have been reported previously. We present the first case of a PTA communicating with a fetal posterior communicating artery identified on a magnetic resonance angiogram. An understanding of these anatomical variants is important to clarify pathological processes that can help guide neurosurgical and endovascular procedures.
authors.affiliation: Department of Radiology, University of Texas Health Science Center at San Antonio, USA.
authors.forename: Florence L
authors.initials: FL
authors.lastname: Chiang
authors.affiliation: Department of Radiology, University of Texas Health Science Center at San Antonio, USA.
authors.forename: Abdul M
authors.initials: AM
authors.lastname: Zafar
authors.affiliation: Department of Radiology, University of Texas Health Science Center at San Antonio, USA.
authors.forename: Carlos
authors.initials: C
authors.lastname: Bazan
mesh_terms: D000293:Adolescent; D002536:Cerebral Arteries / Q000000981:diagnostic imaging*; D002941:Circle of Willis / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000000981:diagnostic imaging* / Q000503:physiopathology* / Q000628:therapy; D018810:Magnetic Resonance Angiography
keywords: Persistent trigeminal artery; anastomosis; carotid-vertebrobasilar; embryological remnant; persistent trigeminal artery variant; posterior communicating artery