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为从胆脂瘤的生化成分和耳分泌的细菌学和生化检查结果来阐明其破坏骨质的发生机制，对131例破坏型慢性化脓性中耳炎手术患者进行观察。其中47例（36％）合并阻脂瘤。取患者耳分泌物和手术摘除的胆脂痛行细菌学和生化检查。62例耳分泌物行需氧培养，其中20例合并胆脂瘤者行需氧
131 cases of chronic suppurative otitis media with chronic suppurative otitis media were observed in order to clarify the mechanism of their destruction of bone from the biochemical composition of cholesteatoma and the bacteriological and biochemical examination results of ear secretion. Forty-seven patients (36%) had combined liposarcoma. Take patients with ear secretions and surgical removal of gallbladder pain line bacteriology and biochemical tests. 62 cases of ear secretions aerobic culture, of which 20 cases of cholesteatoma with aerobic