1临床资料患者,男,32岁,驾驶员。左耳听力下降、耳闷感3个月、伴左耳流脓2个月(2006年11月开始出现症状)。患者3个月前无诱因左耳听力下降,自觉与人言语交流时,声音定向出现障碍,需要求别人重复讲话,左耳较差,伴有耳闷感,似有液体充满左耳,无耳鸣、眩晕、耳痛、耳流脓,行左耳鼓 1 clinical data patient, male, 32 years old, driver. Left ear hearing loss, ear irritation 3 months, with left ear pus 2 months (November 2006 onset of symptoms). Patients 3 months ago, no incentive left ear hearing loss, consciously communicate with people speech, the sound barrier appears to be directed, you need to ask others to repeat speech, left ear is poor, accompanied by ear boredom, it seems fluid filled the left ear, no tinnitus , Dizziness, earache, ear pus, left ear drum