title: [Primary hematoma of the brain stem: considerations apropos of a case].
abstract: The case of a 48 year-old woman presenting with a primary pontine hematoma is reported. The clinical evolution simulated a brain stem tumor and the diagnosis of hematoma was not established before the operation. The preoperative neurological deficit improved except for a facial nerve palsy. These hematomas are thought to be due to rupture of "cryptic" arteriovenous malformations and should be differentiated from those secondary to systemic hypertension. The diagnosis of brain stem hematomas should be considered in any case of brain stem lesion, especially in young and normotensive patients.
authors.affiliation: Serviço de Neurocirurgia do Hospital dos Servidores do Estado (INAMPS), Rio de Janeiro.
authors.forename: J F
authors.initials: JF
authors.lastname: Salomão
authors.forename: J G
authors.initials: JG
authors.lastname: Vialogo
authors.forename: J C
authors.initials: JC
authors.lastname: Lynch
mesh_terms: D002543:Cerebral Hemorrhage / Q000150:complications*; D004322:Drainage; D005260:Female; D006406:Hematoma / Q000209:etiology* / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D011149:Pons
vernacular_title: Hematoma primário do tronco cerebral: considerações a propósito de um caso.