title: Subarachnoid Haemorrhage from a Large Cerebral Aneurysm Visible only on Repeat Angiography.
abstract: We report the case of a 49-year-old woman with a massive subarachnoid haemorrhage in conjunction with trauma. The initial cerebral angiography was normal. Three weeks later she had a second subarachnoid haemorrhage. A repeat angiography demonstrated an eight mm aneurysm of the internal carotid artery bifurcation, a region clearly normal in the previous angiography.
authors.affiliation: Neuroradiology Service, Hospital Geral de Santo António, Porto; Portugal - michael.soderman@karolinska.se.
authors.forename: J V
authors.initials: JV
authors.lastname: Alves
authors.forename: T
authors.initials: T
authors.lastname: Andersson
authors.forename: G
authors.initials: G
authors.lastname: Edner
authors.forename: M
authors.initials: M
authors.lastname: Söderman