患者男,68岁,因“耳闷、听力下降反复发作2年,行鼓膜穿刺抽液3次”于2015年3月5日入院。术前耳内镜检查:鼓膜暗黄色,光锥消失。声导抗检查鼓室呈负压“B”型曲线,纯音测听检查为传导性聋,气导平均听阈40 db。左耳耳廓、外耳道及鼓膜酒精消毒,1%丁卡因0.5 ml滴于外耳道及鼓膜表面,5~10 min后吸除。在硬性耳内镜下,于鼓膜前下象限穿刺,吸出黄色胶冻样分泌物,生理盐水、氨溴素 Male patient, aged 68, was admitted to hospital on March 5, 2015 due to “ears boring, repeated episodes of hearing loss for 2 years, and tympanic membrane aspiration 3 times.” Preoperative endoscopic examination: tympanic membrane dark yellow, light cone disappears. Acoustic impedance examination tympanum was negative pressure “B ” type curve, pure tone audiometry as conductive deafness, average hearing threshold 40 db. Left ear auricle, external auditory canal and tympanic membrane alcohol disinfection, 1% tetracaine 0.5 ml drops in the external auditory canal and tympanic membrane surface, 5 to 10 min after aspiration. In a hard endoscopic endoscopic puncture in the anterior tympanic membrane, aspirate yellow jelly-like secretions, saline, ammonia bromine