title: Persistent trigeminal artery feeding a hemispheric branch of the posterior inferior cerebellar artery: a rare anatomic variant.
abstract: Persistent trigeminal artery is a rare persistent carotid-basilar anastomosis that usually connect the infracavernous segment of the ICA with the basilar artery. Rarely, PTA may feed cerebellar artery. We describe an exceptional case of PTA terminating in postero-inferior cerebellar artery (PICA) hemispheric branch. Angiographic and CTA features are presented and hypotheses regarding developmental origin of this variation are discussed.
authors.affiliation: Department of radiology, Rouen university hospital, 1, rue de Germont, 76000 Rouen, France.
authors.forename: G
authors.initials: G
authors.lastname: Perot
authors.forename: F
authors.initials: F
authors.lastname: Clarençon
authors.forename: F
authors.initials: F
authors.lastname: Di Maria
authors.forename: N
authors.initials: N
authors.lastname: Sourour
authors.forename: A
authors.initials: A
authors.lastname: Biondi
authors.forename: P
authors.initials: P
authors.lastname: Cornu
authors.forename: J
authors.initials: J
authors.lastname: Chiras
mesh_terms: D002343:Carotid Artery, Internal / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002531:Cerebellum / Q000098:blood supply*; D005260:Female; D006801:Humans; D008875:Middle Aged; D011859:Radiography; D014711:Vertebral Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging