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本文报告了3例经病理证实的鼓室血管球瘤病例,临床上都有搏动性耳鸣、听力下降和透过鼓膜可见鼓室后下部有红色肿物等特征。手术中发现瘤体均位于中、下鼓室。在术后8～9个月内,耳鸣消失、听力提高。作者们认为在所有检查项目中,以声阻抗的结果最有意义,在鼓室功能测试时以高档灵敏度来自动记录横向声顺曲线,出现横向波浪型曲线,其波动与脉搏一致。另外鼓室图的声顺峰值较低,其曲线亦呈波浪形,术后此现象即消失。作者们认为该现象的产生原因可能是血液流通于血管球瘤,而引起瘤体质地交替性变化所致。有时该波形也见于高度敏感的正常人、急性中耳炎和偶见于高血压病人,但血管球瘤时更为显著。用手指压迫颈部血管可以
This paper reports 3 cases of pathologically confirmed cases of tympanosoma, all have pulsatile tinnitus, hearing loss and the tympanic membrane can be seen through the tympanic membrane after the lower part of the red tumor and other characteristics. Tumor found in the surgery are located in the lower tympanic cavity. Within 8 to 9 months after surgery, tinnitus disappeared and hearing was improved. The authors concluded that acoustic impedance was the most significant of any test item. Lateral acoustic compliance curves were automatically recorded with high sensitivity during tympanometry, with a lateral wavy curve with fluctuations consistent with the pulse. In addition tympanogram acoustic peak lower, the curve also showed wavy, postoperative disappearance of this phenomenon. The authors believe that the phenomenon may be due to blood circulation in the blood vessels of the tumor, which caused by alternating tumor texture change. Sometimes the waveform is also seen in highly sensitive normal subjects, acute otitis media and occasionally in hypertensive patients, but more pronounced in glomus tumors. Pressure with the fingers of the neck can be blood vessels