title: Supra and infratentorial ectopic schwannoma mimicking a meningioma.
abstract: We report the case of a supra and infratentorial ectopic schwannoma, mimicking a meningioma, that was surgically resected on a 75-year-old man, with a history of progressive visual loss and headaches. MRI was in favour of an occipital, cystic, tentorial-based meningioma extending to the posterior fossa, with signs of intratumoral haemorrhage. This is a unique case because of the rare type of lesion, in a very atypical location, completely unexpected by the preoperative imaging analysis, and to the best of our knowledge it is the oldest patient reported in the literature with this kind of tumour.
authors.affiliation: Department of Neurosurgery, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
authors.forename: Pedro
authors.initials: P
authors.lastname: Ribeiro da Cunha
authors.affiliation: Department of Neurosurgery, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
authors.forename: José Luís
authors.initials: JL
authors.lastname: Alves
authors.affiliation: Department of Neurosurgery, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
authors.forename: Armando
authors.initials: A
authors.lastname: Rocha
mesh_terms: D000368:Aged; D001932:Brain Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000000981:diagnostic imaging*; D008579:Meningioma / Q000000981:diagnostic imaging*; D009442:Neurilemmoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery