title: Olfactory schwannoma.
abstract: We report a case of olfactory schwannoma with calcification. Intraoperative findings indicated that the tumour originated from the olfactory groove. Intraoperative findings of previous studies have not indicated a clear relationship between subfrontal schwannoma and the olfactory nerve, which seems strange, given the association between tumours and cranial nerves at other sites. We suggest this observation has not been reported because the growing olfactory schwannoma changes the local morphology, affecting the appearance of the olfactory nerve.
authors.affiliation: Department of Neurosurgery, School of Medicine, Keio University, Tokyo, Japan. kazu-adachi@rio.odn.ne.jp
authors.forename: K
authors.initials: K
authors.lastname: Adachi
authors.forename: K
authors.initials: K
authors.lastname: Yoshida
authors.forename: T
authors.initials: T
authors.lastname: Miwa
authors.forename: E
authors.initials: E
authors.lastname: Ikeda
authors.forename: T
authors.initials: T
authors.lastname: Kawase
mesh_terms: D001932:Brain Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D035262:Cranial Fossa, Anterior / Q000473:pathology / Q000601:surgery*; D003390:Cranial Nerve Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D019299:Decompression, Surgical; D004829:Epilepsy, Generalized / Q000209:etiology / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008866:Microsurgery; D008875:Middle Aged; D009830:Olfactory Bulb / Q000473:pathology / Q000601:surgery*; D009832:Olfactory Nerve / Q000473:pathology / Q000601:surgery; D020431:Olfactory Nerve Diseases / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D019292:Skull Base Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D014057:Tomography, X-Ray Computed