title: The posterior inferior cerebellar artery arising from the extracranial segment of the internal carotid artery via the hypoglossal canal without an interposed segment of the basilar artery: a persistent primitive hypoglossal artery variant.
abstract: The authors present a rare case of a persistent primitive hypoglossal artery (PHA) variant ending in the posterior inferior cerebellar artery (PICA) without an interposed segment of the basilar artery and describe briefly the possible embryogenesis of this anomaly.
authors.affiliation: Department of Radiology, Saiseikai Yokohama City Nanbu Hospital, 3-2-10 Kohnandai, Kohnan-ku, Yokohama 234-8503, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Andoh
authors.forename: K
authors.initials: K
authors.lastname: Tanohata
authors.forename: N
authors.initials: N
authors.lastname: Moriya
authors.forename: H
authors.initials: H
authors.lastname: Hagiwara
authors.forename: J
authors.initials: J
authors.lastname: Lee
authors.forename: M
authors.initials: M
authors.lastname: Sato
authors.forename: T
authors.initials: T
authors.lastname: Yoshida
authors.forename: T
authors.initials: T
authors.lastname: Nagashima
mesh_terms: D002343:Carotid Artery, Internal / Q000002:abnormalities* / Q000000981:diagnostic imaging; D020785:Central Nervous System Vascular Malformations / Q000150:complications / Q000000981:diagnostic imaging*; D002531:Cerebellum / Q000098:blood supply; D002533:Cerebral Angiography / Q000379:methods*; D002536:Cerebral Arteries / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002908:Chronic Disease; D005260:Female; D005500:Follow-Up Studies; D006261:Headache / Q000209:etiology; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000601:surgery; D008279:Magnetic Resonance Imaging / Q000379:methods; D008875:Middle Aged; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed