title: [Brainstem hemorrhage after surgical removal of arachnoid cyst of the Sylvian fissure: a case report].
abstract: The authors report a case of a hemorrhage of the brainstem after craniotomy for resection of a huge arachnoid cyst of the sylvian fissure on the left hemisphere. The previous simptomatology included clinical signs of increased intracranial pressure, and the computerized tomography showed midline shift. Some factors may contribute to brain hemorrhage post-operatively: cerebral edema, ipsilateral changes in the venous reflux and blood perfusion, although the physiopathology remains obscure. A more careful approach is suggested in such cases with intracranial hypertension.
authors.affiliation: Disciplina de Neurocirurgia da Faculdade de Ciências Médicas da UNICAMP.
authors.forename: G
authors.initials: G
authors.lastname: Borges
authors.forename: Y B
authors.initials: YB
authors.lastname: Fernandes
authors.forename: N R
authors.initials: NR
authors.lastname: Gallani
mesh_terms: D016080:Arachnoid Cysts / Q000473:pathology / Q000601:surgery*; D001933:Brain Stem; D002543:Cerebral Hemorrhage / Q000209:etiology*; D003399:Craniotomy / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008636:Mesencephalon; D008875:Middle Aged; D014057:Tomography, X-Ray Computed
vernacular_title: Hemorragia de tronco cerebral após remoção cirúrgica de cisto aracnóide da fissura silviana: relato de caso.