title: Carotid "trifurcation" aneurysm: surgical anatomy and management.
abstract: The authors describe a rare case of internal carotid artery (ICA) trifurcation aneurysm and its surgical management. Carotid trifurcation is a unique anatomical variant where three arterial branches arise from the carotid termination than the usual two. Aneurysm arising from the trifurcation, due to its rarity, is difficult to treat. The anatomy, embryological basis and significance of such an anomaly during surgical management are discussed.
authors.affiliation: Department of Neurosurgery, Regional Neurosciences Centre, Royal Victoria Hospital, Belfast BT12 6BA, UK.
authors.forename: Chandrasekaran
authors.initials: C
authors.lastname: Kaliaperumal
authors.forename: Nidhi
authors.initials: N
authors.lastname: Jain
authors.forename: C Steven
authors.initials: CS
authors.lastname: McKinstry
authors.forename: Kishor A
authors.initials: KA
authors.lastname: Choudhari
mesh_terms: D000328:Adult; D017542:Aneurysm, Ruptured / Q000000981:diagnostic imaging* / Q000601:surgery; D015901:Angiography, Digital Subtraction; D002340:Carotid Artery Diseases / Q000000981:diagnostic imaging* / Q000601:surgery; D002343:Carotid Artery, Internal / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D002941:Circle of Willis / Q000002:abnormalities / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000601:surgery; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging* / Q000601:surgery; D014057:Tomography, X-Ray Computed