title: [Perimesencephalic subarachnoid hemorrhage nonaneurysmatic: report of a case and literature review].
abstract: A 42 year-old man with subarachnoid hemorrhage was admitted in our Service (Hunt & Hess grade II). CT-scan disclosed predominantly perimesencephalic subarachnoid hemorrhage. Digital subtraction angiographic study did not disclose either cerebral aneurysm or any other potential site of intracranial bleeding. The evolution was uneventful. A DSA was repeated one month later and was negative. Four months later, the patient was asymptomatic. The authors review the literature and emphasize the importance in recognizing this benign clinical form of nonaneurysmatic subarachnoid hemorrhage.
authors.affiliation: Unidade de Ciências Neurológicas, Hospital das Naçóes, Curitiba, PR, Brasil.
authors.forename: M H
authors.initials: MH
authors.lastname: Tsubouchi
authors.forename: W O
authors.initials: WO
authors.lastname: Arruda
authors.forename: R
authors.initials: R
authors.lastname: Ramina
authors.forename: M S
authors.initials: MS
authors.lastname: Meneses
authors.forename: A A
authors.initials: AA
authors.lastname: Pedrozo
authors.forename: L F
authors.initials: LF
authors.lastname: Favorito
authors.forename: R S
authors.initials: RS
authors.lastname: Clemente
mesh_terms: D000328:Adult; D002533:Cerebral Angiography; D006801:Humans; D008297:Male; D008636:Mesencephalon / Q000000981:diagnostic imaging*; D011379:Prognosis; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed
vernacular_title: Hemorragia subaracnóidea perimesencefálica não-aneurismática. Apresentação de caso e revisão de literatura.