味覚神経障害
聴神経腫瘍と味覚異常について
1992 年 4 巻 2 号 p. 47-50
詳細
1992 年 4 巻 2 号 p. 47-50
Taste disturbance in 20 patients with acoustic neuromas was evaluated and analyzed. In 14 patients, tumor diameters were less than 15 mm in extra-meatal size. Only one patient complained of taste disorder without any abnormality in electrogustometry or the disc method taste test. Two patients (10%) had positive electrogustometry, and 3 patients (15%) had decreased taste on the side of the lesion by the disc method taste test, although they were not aware of taste disorder.
In one patient, facial spasm was recognized before operation, and during surgery, it was noted that the tumor was strongly adherent to the facial nerve suggesting that the facial spasm was caused by the tumor itself. However, taste function was completely normal.
These results suggest that taste tests are not useful in the early diagnosis of acoustic neuromas.
