title: [Middle mediastinal schwannoma originating from the intrathoracic vagal nerve with difficulty in swallowing; report of a case].
abstract: A 41-year-old male complaining of difficulty in swallowing was referred to our hospital. Chest computed tomography( CT) demonstrated 34×25×36 mm tumors in the subcarinal region. Gadolinium( Gd)-diethylenetriamine pentaacetic acid( DTPA) enhanced magnetic resonance imaging (MRI) showed the tumor with the target appearance sign, i.e., signal intensity of the mass was low on T1-weighted MRI, and the center of the mass was enhanced by Gd-DTPA. A neurogenic tumor was suspected on radiological findings. Resection of the tumor by video-assisted thoracoscopic surgery was performed. The tumor was found to originate from the left vagus nerve by operative findings and was diagnosed as schwannoma by pathological examination.
authors.affiliation: Department of Thoracic Surgery, Tokyo Medical and Dental University, Tokyo, Japan.
authors.forename: Hironori
authors.initials: H
authors.lastname: Ishibashi
authors.forename: Shinichiro
authors.initials: S
authors.lastname: Ohta
authors.forename: Masahide
authors.initials: M
authors.lastname: Hirose
authors.forename: Takeo
authors.initials: T
authors.lastname: Togo
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Muro
authors.forename: Nobuaki
authors.initials: N
authors.lastname: Nakajima
mesh_terms: D000328:Adult; D003390:Cranial Nerve Neoplasms / Q000150:complications / Q000175:diagnosis*; D003680:Deglutition Disorders / Q000209:etiology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008479:Mediastinal Neoplasms / Q000150:complications / Q000175:diagnosis*; D009442:Neurilemmoma / Q000150:complications / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed; D020421:Vagus Nerve Diseases / Q000150:complications / Q000175:diagnosis*