頚部迷走神経より生じた神経鞘腫--1症例報告および本邦例集計

概要

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A 74-year-old man with a firm asymptomatic tumor in the upper left lateral neck visited our department on March 5, 1979. At surgery under local anesthesia, it was confirmed that the tumor originated from the vagus nerve. The tumor was removed together with the vagus nerve. The neurinoma of Antoni type A and B was diagnosed on microscopic tissue examination. Virtually no symptom or sign was observed post-operatively except for tachycardia of short duration and persistent hoarseness.Neurinoma of the cervical vagus nerve is a rare growth. Statistical observation was made on 35 cases, including ours, reported in Japan from 1926 to 1980. Our comments on neurinoma of the cervical vagus nerve are as follows.1) The age at diagnosis ranged from 23 to 74 years with an average of 45 years.2) The incidence was slightly higher in men than in women.3) The incidence was considerably higher on the right side than on the left at a ratio of 2:1.4) It is relatively difficult to make a correct preoperative diagnosis of this tumor.5) The statistics show better prognoses for complete removal of the tumor together with the vagus nerve than intracapsular removal.
耳鼻咽喉科臨床学会の論文