title: Petroclival meningiomas: Remaining controversies in light of minimally invasive approaches.
abstract: Surgical resection of petroclival meningiomas remains challenging due to their deep location and relationship to vital neurovascular structures. Although the natural history of these tumors involves a slow course, the incidence of cranial nerve deficits and the extent of tumor resection vary widely in the literature. Some reviews on this topic have been conducted, but data remain fragmentary and based on retrospective case series, which hinders attempts at meta-analysis. Within this context, research into the use of minimally invasive approaches, including in neuroendoscopy, continues to emerge. The objective of this narrative review is to analyze the available literature on the surgical treatment of petroclival meningiomas, with a focus on attempts at endoscopy-assisted resection.
authors.affiliation: Neurosurgeon and Intensivist, Graduate Program in Surgical Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Rua Oscar Freire, 1523/72, São Paulo, SP 05409010, Brazil. Electronic address: s.wayhs@hc.fm.usp.br.
authors.forename: Sâmia Yasin
authors.initials: SY
authors.lastname: Wayhs
authors.affiliation: Neurosurgeon, Department of Neurology, Division of Neurosurgery, Universidade de São Paulo (USP), São Paulo, SP, Brazil; Department of Neurosurgery, Eberhard Karls University, Tübingen, Germany; Av. Albert Einstein, 627/701, São Paulo, SP 05652000, Brazil. Electronic address: lepski@usp.br.
authors.forename: Guilherme Alves
authors.initials: GA
authors.lastname: Lepski
authors.affiliation: Neurosurgeon, Oncology Center, Radiotherapy and Radiosurgery Unit, Hospital Moinhos de Vento (HMV), Porto Alegre, RS, Brazil; Rua Teixeira Soares, 640, Passo Fundo, RS 99010080, Brazil. Electronic address: lfrighetto@hotmail.com.
authors.forename: Leonardo
authors.initials: L
authors.lastname: Frighetto
authors.affiliation: Graduate Program in Surgical Sciences, UFRGS; Centro Avançado de Neurologia e Neurocirurgia (CEANNE), Porto Alegre, RS, Brazil; Rua Ramiro Barcelos, 2400, 2° andar, Porto Alegre, RS 90035003, Brazil. Electronic address: ppgcirur@ufrgs.br.
authors.forename: Gustavo Rassier
authors.initials: GR
authors.lastname: Isolan
mesh_terms: D003388:Cranial Fossa, Posterior; D006801:Humans; D008577:Meningeal Neoplasms / Q000601:surgery*; D008579:Meningioma / Q000601:surgery*; D019060:Minimally Invasive Surgical Procedures / Q000379:methods*; D044583:Neuroendoscopy / Q000379:methods*; D019635:Neurosurgical Procedures / Q000379:methods*; D010579:Petrous Bone
keywords: Brain tumor; Clivus; Endoscopy; Meningioma; Skull base