title: Neurofibroma in the mastoid segment of the facial canal.
abstract: Neural tissue-derived facial nerve tumours usually present as neurinomas. We describe the extremely rare occurrence of a histologically verified neurofibroma primarily arising in the mastoid segment of the facial canal in a patient not fulfilling diagnostic criteria for neurofibromatosis. The tumour showed evidence of perineural growth into the jugular foramen, as suggested by cross-sectional imaging and intraoperative findings.
authors.affiliation: Neuroradiology Section, Department of Radiology CM, Humboldt University, Berlin, Germany. Randolf.Klingebiel@charite.de
authors.forename: Randolf
authors.initials: R
authors.lastname: Klingebiel
authors.forename: Cyrus
authors.initials: C
authors.lastname: Djamchidi
authors.forename: Anja
authors.initials: A
authors.lastname: Harder
authors.forename: Rüdiger
authors.initials: R
authors.lastname: Lehmann
authors.forename: Volker
authors.initials: V
authors.lastname: Jahnke
mesh_terms: D005155:Facial Nerve Diseases / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008416:Mastoid / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D008875:Middle Aged; D009455:Neurofibroma / Q000150:complications* / Q000175:diagnosis* / Q000601:surgery; D012888:Skull Neoplasms / Q000150:complications* / Q000175:diagnosis* / Q000601:surgery; D014057:Tomography, X-Ray Computed