title: Simultaneously occurring tumours within the same cerebello-pontine angle: refining literature definitions and proposal for classification.
abstract: We report on an unusual case of a patient, not affected by neurofibromatosis, harbouring two radiologically spatially contiguous tumours within the same cerebello-pontine angle. Pathological findings were consistent with the diagnosis of two spatially distinct primary tumours, namely a meningioma and a schwannoma. We proposed a classification of tumours occurring at the same location consistent with the different spatial arrangement and histological nature of these conditions. The correct classification of these nosological entities will allow further more accurate evaluations of these cases in order to clarify the pathogenesis, prognosis and best treatment of each one.
authors.affiliation: Neurosurgery, Catholic University Medical School, Policlinico A. Gemelli Largo A. Gemelli, 8, 00168, Rome, Italy. paolo.frassanito@gmail.com
authors.forename: Paolo
authors.initials: P
authors.lastname: Frassanito
authors.forename: Nicola
authors.initials: N
authors.lastname: Montano
authors.forename: Liverana
authors.initials: L
authors.lastname: Lauretti
authors.forename: Roberto
authors.initials: R
authors.lastname: Pallini
authors.forename: Eduardo
authors.initials: E
authors.lastname: Fernandez
authors.forename: Libero
authors.initials: L
authors.lastname: Lauriola
authors.forename: Mariangela
authors.initials: M
authors.lastname: Novello
authors.forename: Giulio
authors.initials: G
authors.lastname: Maira
mesh_terms: D000368:Aged; D002530:Cerebellopontine Angle / Q000473:pathology* / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008577:Meningeal Neoplasms / Q000473:pathology* / Q000601:surgery; D008579:Meningioma / Q000145:classification / Q000473:pathology* / Q000601:surgery; D009378:Neoplasms, Multiple Primary / Q000145:classification* / Q000473:pathology* / Q000601:surgery; D009442:Neurilemmoma / Q000145:classification / Q000175:diagnosis / Q000601:surgery; D009464:Neuroma, Acoustic / Q000145:classification* / Q000473:pathology* / Q000601:surgery