title: Pediatric orbital schwannoma originating from the oculomotor nerve.
abstract: Intraorbital schwannoma is a rare tumor that constitutes approximately 1%-8% of all orbital tumors. The authors report a case of orbital schwannoma in a 5-year-old boy who was admitted to their institute with exophthalmos and ptosis of the right eye. Computed tomography scanning and MR imaging revealed a retroocular mass in the right orbit. The tumor was successfully removed via a transcranial approach. The pathological diagnosis was schwannoma that appeared to originate from the superior branch of the oculomotor nerve. Despite the rarity of these intraorbital extraocular tumors in children, schwannomas should be differentiated from other intraorbital tumors.
authors.affiliation: Department of Neurosurgery, Hyogo Prefectural Kobe Children’s Hospital, Kobe, Hyogo, Japan. hnagashima0628@yahoo.co.jp
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Nagashima
authors.forename: Kazuki
authors.initials: K
authors.lastname: Yamamoto
authors.forename: Atsufumi
authors.initials: A
authors.lastname: Kawamura
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Nagashima
authors.forename: Koji
authors.initials: K
authors.lastname: Nomura
authors.forename: Makiko
authors.initials: M
authors.lastname: Yoshida
mesh_terms: D000328:Adult; D001763:Blepharoptosis / Q000473:pathology; D003937:Diagnosis, Differential; D005094:Exophthalmos / Q000209:etiology; D006801:Humans; D007150:Immunohistochemistry; D008279:Magnetic Resonance Imaging; D008297:Male; D009442:Neurilemmoma / Q000473:pathology* / Q000601:surgery; D019635:Neurosurgical Procedures / Q000379:methods*; D009802:Oculomotor Nerve / Q000473:pathology*; D009918:Orbital Neoplasms / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome