title: Delayed post-traumatic saccular aneurysm of PICA in an adolescent.
abstract: Delayed traumatic intracranial aneurysms of the posterior circulation caused by nonpenetrating head injury are rare, especially in pediatric patients. The true incidence and natural history of these aneurysms are poorly understood. We report a case of a 15-year-old boy who initially presented with subarachnoid hemorrhage of the posterior fossa without any evidence of associated aneurysm. On a routine computed tomography of the head, however, he was found to have a saccular aneurysm of the proximal posterior inferior cerebellar artery. The patient was treated successfully by microsurgical clipping and PICA/PICA bypass.
authors.affiliation: Department of Neurosurgery, University of Utah Health Sciences Center, Salt Lake City, 84132, USA.
authors.forename: Mandy J
authors.initials: MJ
authors.lastname: Binning
authors.forename: Tricia B
authors.initials: TB
authors.lastname: Hauschild
authors.forename: Amin
authors.initials: A
authors.lastname: Amini
authors.forename: Joel D
authors.initials: JD
authors.lastname: MacDonald
mesh_terms: D000293:Adolescent; D002533:Cerebral Angiography; D003388:Cranial Fossa, Posterior / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D016489:Head Injuries, Closed / Q000150:complications*; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D014711:Vertebral Artery / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D020217:Vertebral Artery Dissection / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery