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本组病例是根据我院耳鼻喉科慢性化脓性中耳炎合并胆脂瘤的患者中X线、手术、病理三方面资料较完整的71只乳突进行初步临床、X线分析。其发生率为40%,与国内张氏等报告的38%差不多。一、胆脂瘤之病理综合各家意见胆脂瘤可分真与假性两种,真性者(珍珠肿)为胎生之残余,有结缔组织的包膜及上皮内层,其中含胆固醇结晶,多见于脑及脑膜。假性者又分原发与继发型,原发型是由于新生儿中耳炎与上鼓室空气被吸收,形成鼓膜驰缓部的自然穿孔,上皮由穿孔边缘
This group of patients is based on our hospital ENT chronic suppurative otitis media in patients with cholesteatoma X-ray, surgery, pathology, three more complete information on the 71 cases of mastoid preliminary clinical, X-ray analysis. Its incidence is 40%, which is about the same as 38% of the domestic report by Zhang et al. First, the pathology of cholesteatoma various opinions cholesteatoma can be divided into real and pseudo-two kinds, the true person (pearl swollen) is the remnants of viviparous, connective tissue capsule and epithelial lining, including cholesterol crystals, More common in the brain and meninges. Pseudo-sub-primary and secondary sub-type, the primary type is due to neonatal otitis media and upper tympanic air is absorbed, the formation of the tympanic membrane slow natural perforation of the epithelium by perforation edge