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徐某女,20岁。因右耳反复隐痛不适伴流少量黄色液体3.5年就诊。体检发现右外耳道峡部有一如蚕豆大肿物堵塞外耳道,不能窥视深部。肿物表面被以正常色泽皮肤,推压见质地坚硬,不活动,其蒂位于外耳道后下壁,外耳道内有少量淡黄色无异味液体。双侧乳突X线片显示双侧乳突气化良好,无异常发现。于内外耳门重迭区,可见一边界清楚的半圆形阴影
Ms. Xu, 20 years old. Due to pain and discomfort in the right ear repeatedly with a small amount of yellow liquid 3.5 years treatment. Physical examination found that the right external auditory canal isthmus has a large tumor of broad beans block the external auditory canal, can not peep deep. The surface of the tumor is normal skin color, hard to see see the hard, inactive, its pedicle in the posterior wall of the external auditory canal, a small amount of light yellow odorless liquid inside the ear canal. Bilateral mastoid X-ray showed bilateral mastoid gasification is good, no abnormal findings. Inside and outside the ears overlapping area, showing a clear boundary of the semicircular shadow