顔面神経鞘腫--自験例と本邦35例に対する文献的考察 (滋賀医科大学耳鼻咽喉科学教室開講3周年記念論文集<特集>)

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A case of a facial nerve neuroma, originated from its horizontal segment, was reported.The tumor full-filled the hole mastoid air cell system and extended to the middle and posterior cranial fossa, and anteriorly to the tubar area. The mass was well encapsulated, and had not infiltrated into the surrounding structures.A review of Japanese literature revealed 35 cases of the facial nerve neuroma since 1937. Although the tumor originates from the facial nerve, paralysis of the nerve is not a common sign. A visible mass through an otoscope, hearing loss, vestibular hypofunction and abnormal findings in x-ray films are the major contributors for the diagnosis.We stressed that the tumor was not so much a rare entity as commonly believed.
耳鼻咽喉科臨床学会の論文