title: Different microsurgical approaches to meningiomas of the anterior cranial base.
abstract: BACKGROUND
  Meningiomas of the anterior skull base show specific characteristics, which render them difficult to handle. These tumors include olfactory groove, supra- and parasellar, anterior sphenoid ridge, cavernous sinus, and spheno-orbital meningiomas. Tumor localization and size, encasement of important structures as well as the extent of dural attachment may influence the decision for an adequate approach.
  
  
  CONCLUSIONS
  Various approaches to the anterior cranial fossa exist, each with corresponding advantages and disadvantages. Recently, endoscopic approaches have increasingly been used. In this review, the different approaches to meningiomas of the anterior cranial fossa in respect of anatomical issues, indications, and associated risks are discussed.
authors.affiliation: Department of Neurosurgery, Klinikum Grosshadern, University of Munich, Marchioninistrasse 15, 81377 Munich, Germany. walter.rachinger@med.uni-muenchen.de
authors.forename: Walter
authors.initials: W
authors.lastname: Rachinger
authors.forename: Stefan
authors.initials: S
authors.lastname: Grau
authors.forename: Joerg-Christian
authors.initials: JC
authors.lastname: Tonn
mesh_terms: D035262:Cranial Fossa, Anterior / Q000601:surgery; D006801:Humans; D008577:Meningeal Neoplasms / Q000601:surgery*; D008579:Meningioma / Q000601:surgery*; D008866:Microsurgery / Q000379:methods*; D044583:Neuroendoscopy / Q000379:methods; D011183:Postoperative Complications / Q000209:etiology; D012307:Risk Factors