title: Anterior spinal and bulbar artery supply to the posterior inferior cerebellar artery revealed by a ruptured aneurysm: case report.
abstract: The posterior inferior cerebellar artery (PICA) is a vessel located between the intra- and extracranial circulation. The artery is characterized by a complex embryological development and numerous anatomical variants. The authors present a case of the PICA supplied by both a hypertrophic anterior spinal artery and a hypoplastic bulbar artery. This unusual arrangement somehow completes the list of previously published variants, and the spontaneous rupture of a related aneurysm confirmed the fragility of this network. The authors discuss anatomical and treatment considerations.
authors.affiliation: Department of Interventional Neuroradiology, Pitié-Salpêtrière Hospital.|Université Pierre et Marie Curie-Paris VI University and.
authors.forename: Joseph
authors.initials: J
authors.lastname: Gabrieli
authors.affiliation: Department of Interventional Neuroradiology, Pitié-Salpêtrière Hospital.
authors.forename: Nader-Antoine
authors.initials: NA
authors.lastname: Sourour
authors.affiliation: Université Pierre et Marie Curie-Paris VI University and.|Department of Neurosurgery, Pitié-Salpêtrière Hospital and Fondation Rothschild, Paris, France.
authors.forename: Dorian
authors.initials: D
authors.lastname: Chauvet
authors.affiliation: Department of Interventional Neuroradiology, Pitié-Salpêtrière Hospital.
authors.forename: Federico
authors.initials: F
authors.lastname: Di Maria
authors.affiliation: Department of Interventional Neuroradiology, Pitié-Salpêtrière Hospital.|Université Pierre et Marie Curie-Paris VI University and.
authors.forename: Jacques
authors.initials: J
authors.lastname: Chiras
authors.affiliation: Department of Interventional Neuroradiology, Pitié-Salpêtrière Hospital.|Université Pierre et Marie Curie-Paris VI University and.
authors.forename: Frédéric
authors.initials: F
authors.lastname: Clarençon
mesh_terms: D017542:Aneurysm, Ruptured / Q000150:complications / Q000000981:diagnostic imaging*; D002531:Cerebellum / Q000098:blood supply*; D002533:Cerebral Angiography; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000000981:diagnostic imaging*; D008297:Male; D013116:Spinal Cord / Q000098:blood supply*; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging* / Q000209:etiology; D055815:Young Adult
keywords: AICA = anterior inferior cerebellar artery; ASA = anterior spinal artery; DSA = digital subtraction angiography; LSA = lateral spinal artery; PICA = posterior inferior cerebellar artery; Wallenberg syndrome; aneurysm; anterior spinal artery; interventional neurosurgery; lateral spinal artery; posterior inferior cerebellar artery; posterior medullary segment; tonsillomedullary segment; vascular disorders; vasocorona