title: What to do when the doctor sees double: identical twins with nearly identical aneurysms.
abstract: This report details the case of identical twins, both of whom had an aneurysm in the same anatomic location. Such aneurysms should be considered as a discrete subset of familial aneurysms. The implications for patient management are discussed.
authors.affiliation: Division of Neurosurgery, University of Toronto Brain Vascular Malformation Study Group; Toronto, Canada.
authors.forename: P J
authors.initials: PJ
authors.lastname: Porter
authors.forename: M
authors.initials: M
authors.lastname: Tymianski
authors.forename: P J
authors.initials: PJ
authors.lastname: Muller
authors.forename: K G
authors.initials: KG
authors.lastname: Terbrugge