小脳虫部腫瘍の神経耳科学的観察

概要

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The early clinical diagnosis of cerebellar vermian tumor is sometimes difficult, because the initial symptoms are often insidious and the objective findings are scanty at its early stage. Reported herein are 3 cases of cerebellar vermian tumors that were successfully diagnosed with the aid of otoneurological examination and the local diagnosis was affirmed by the operations.In these cases, vertical or symmetrical horizontal nystagmus was often observed. However, nystagmus was hardly detected with u very localized lesion in the vermis. Asymmetrical extention of the primary lesion to the adjacent areas of the cerebellar hemisphere or the brainstem could also be diagnosed by otoneurological tests.It was concluded from the experience about these 3 cases that the otoneurological exami-nation was very helpful for early diagnosis and local diagnosis of the adjacent invaded area of cerebellar midline tumor.
社団法人日本耳鼻咽喉科学会の論文