title: Advanced Vestibular Schwannoma: A Case of Optic Disc Oedema without Hydrocephalus.
abstract: A wide range of pathologies can cause papilloedema. Vestibular schwannoma is a benign and slow-growing tumour that causes symptoms and findings on ophthalmic examination when the diagnostic is delayed. The authors report a case of a 64-year-old male who presented with bilateral disc oedema secondary to a vestibular schwannoma grade 4. Obstructive hydrocephalus was not evident. The authors suggest that cerebrospinal fluid protein may have a role in the formation of optic disc oedema. A right suboccipital craniectomy was performed to remove the tumour, leading to secondary facial palsy.
authors.affiliation: Department of Ophthalmology, Centro Hospitalar do Baixo , Vouga, Aveiro, Portugal.
authors.forename: Rita Joana Castro
authors.initials: RJ
authors.lastname: Matos
authors.affiliation: Department of Ophthalmology, Centro Hospitalar do Baixo , Vouga, Aveiro, Portugal.
authors.forename: Pedro Nuno Beirão Cardoso Quadrado
authors.initials: PN
authors.lastname: Gil
authors.affiliation: Department of Ophthalmology, Centro Hospitalar do Baixo, Vouga, Aveiro, Portugal; Department of Ophthalmology, Centro Hospitalar Médio Tejo, Tomar, Portugal.
authors.forename: Joana Margarida Silva
authors.initials: JM
authors.lastname: Pires
authors.affiliation: Department of Ophthalmology, Centro Hospitalar Médio Tejo , Tomar, Portugal.
authors.forename: Nádia
authors.initials: N
authors.lastname: Lopes
keywords: Cerebellopontine angle tumour; papilloedema; vestibular schwannoma