title: Post-Treatment Gliosarcoma Extension into the Pterygomaxillary Fossa: Literature Review and Case Report.
abstract: Only four primary gliosarcoma case reports are described in the literature with transcranial (intradural to extradural) penetration into the region of the infratemporal fossa. This is the first report of a primary glioblastoma (GBM) that evolved into secondary or post-treatment gliosarcoma without evidence of a secondde novotumor and with extension into the left pterygomaxillary fossa.
authors.affiliation: Neurosurgery, Boulder Neurosurgical Associates.
authors.forename: Alexander
authors.initials: A
authors.lastname: Mason
authors.affiliation: Neurosurgery, Boulder Neurosurgical Associates.
authors.forename: Alan T
authors.initials: AT
authors.lastname: Villavicencio
authors.affiliation: Neurosurgery, Boulder Neurosurgical Associates.
authors.forename: Ewell L
authors.initials: EL
authors.lastname: Nelson
authors.affiliation: Pathology, Boulder Valley Pathology.
authors.forename: Robert C
authors.initials: RC
authors.lastname: Forsythe
authors.affiliation: Neurosurgery, Justin Parker Neurological Institute.
authors.forename: Sigita
authors.initials: S
authors.lastname: Burneikiene
keywords: extracranial extravasation; glioblastoma; post-treatment gliosarcoma