title: Dissection of bilateral intracranial vertebral artery with basilar artery involvement: a case report of a patient free from neurological deficits.
abstract: We report a patient with dissection of the bilateral intracranial vertebral artery (VA) that did not present any symptoms other than occipital headache, which was probably associated with sleeping overnight in a car seat with unsteady head position. Although cerebral angiography revealed extensive dissection of the bilateral VA after branching of the posterior inferior cerebral artery, retrograde flow to the basilar artery (BA) via the right posterior communicating artery contributed to preserved posterior circulation. These findings indicate that even in patients without neurological deficits, the involvement of BA cannot be excluded and that accurate evaluation using radiological techniques should be considered.
authors.affiliation: Department of Cerebrovascular Disease, Cerebrovascular Center and Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka. hagiwara@intmed2.med.kyushu-u.ac.jp
authors.forename: Noriko
authors.initials: N
authors.lastname: Hagiwara
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kamouchi
authors.forename: Tooru
authors.initials: T
authors.lastname: Inoue
authors.forename: Setsuro
authors.initials: S
authors.lastname: Ibayashi
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Iida
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Okada
mesh_terms: D000784:Aortic Dissection / Q000150:complications / Q000175:diagnosis*; D002533:Cerebral Angiography; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000175:diagnosis*; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D014653:Vascular Headaches / Q000209:etiology; D020217:Vertebral Artery Dissection / Q000150:complications / Q000175:diagnosis