title: Two cases of subfrontal schwannoma, including a rare case located between the endosteal and meningeal layers of the dura.
abstract: Subfrontal schwannomas arising from the olfactory groove are rare and their origin remains uncertain because olfactory bulbs do not possess Schwann cells. We present two cases of subfrontal schwannomas treated with surgical resection. In one case, the tumor was located between the endosteal and meningeal layers of the dura mater. This rare case suggests that subfrontal schwannomas may originate from the fila olfactoria.
authors.affiliation: Department of Neurosurgery, Faculty of Medicine, Saga University.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Okamoto
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Mineta
authors.forename: Tomihiro
authors.initials: T
authors.lastname: Wakamiya
authors.forename: Haruhisa
authors.initials: H
authors.lastname: Tsukamoto
authors.forename: Toshiro
authors.initials: T
authors.lastname: Katsuta
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Nakagaki
authors.forename: Toshio
authors.initials: T
authors.lastname: Matsushima
mesh_terms: D000328:Adult; D035262:Cranial Fossa, Anterior / Q000473:pathology* / Q000601:surgery*; D003390:Cranial Nerve Neoplasms / Q000473:pathology* / Q000601:surgery*; D003937:Diagnosis, Differential; D004388:Dura Mater / Q000473:pathology* / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000473:pathology* / Q000601:surgery*; D009442:Neurilemmoma / Q000473:pathology* / Q000601:surgery*; D009901:Optic Nerve Diseases / Q000473:pathology* / Q000601:surgery*; D012888:Skull Neoplasms / Q000473:pathology* / Q000601:surgery*; D014057:Tomography, X-Ray Computed