The study on apoptosis of middle ear cholesteatoma epithelium has become a hotspot in recent years.
近年来，有关中耳胆脂瘤的发生与细胞凋亡状态的研究受到广泛关注。
MethodsThe level of PGE2 in 12 middle ear cholesteatoma specimens(observed group) and 10 samples of normal external ear canal skin(control group) were examined by RIA method.
方法采用放射免疫法检测12份胆脂瘤上皮组织匀浆液（观察组）及10份正常外耳道皮肤组织匀浆液（对照组）中PGE2水平。
Objective To investigate the location, extension, clinical symptom, image features, and operation treatment of the congenital cholesteatoma of middle ear.
目的探讨先天性中耳胆脂瘤的位置、范围、临床症状、影像学特征及手术治疗。
Objective: to investigate the effect of open tympanoplasty for patients with cholesteatoma of the middle ear.
目的：探讨开放式鼓室成形术治疗胆脂瘤中耳炎的疗效。
Objective: to investigate the effect of open tympanoplasty for patients with cholesteatoma of the middle ear.
目的：探讨开放式鼓室成形术治疗胆脂瘤中耳炎的疗效。
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