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一、临床资料:患者,女,35岁。左耳搏动性目鸣,听力下降,继之出现左耳流脓,张口困难病史。就诊时耳镜检查外耳道被白色肿物阻塞,可见大量脓性分泌物。以左慢性化脓性中耳炎收入院。于96年11月30日行中耳手术,术中显微镜下外耳道肿物呈白色,表面光滑。剥离时蒂在前下质韧,未取出。然后耳后切口用电钻切除乳突及外耳道后壁,发现肿物占据部分外耳道,鼓室及鼓窦,部分外耳道后壁被破坏。鼓室及鼓窦
First, the clinical data: patients, female, 35 years old. Left ear pulsating eyesight, hearing loss, followed by left ear pus, mouth open a difficult history. Otolaryngoscope examination of the external auditory canal was white mass obstruction, showing a large number of purulent discharge. To the left chronic suppurative otitis media income hospital. On November 30, 1996 middle ear surgery, intraoperative ear canal under the microscope white, smooth surface. When the stripping pedicle in the former under the tough quality, not removed. Then ear cutting incision with mainspring and external auditory canal rear wall and found that the tumor occupies part of the external auditory canal, tympanic and drum sinus, part of the posterior wall of the external auditory canal is destroyed. Tympanic and drum sinus