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鼓膜完整的原发性胆脂瘤多为先天性。“后天性”病例则很少报道。本文作者于1977～1980共收集15例,其中:鼓膜内胆脂瘤(IMTC)5例,(男3例,女2例,平均年龄1岁7个月);中鼓室胆脂瘤(MTC)10例(男5例,女5例,年龄17个月～8岁)。临床资料:(1)IMTC中4例反复发作中耳炎1～4次,MTC中8例反复发作中耳炎平均6次。(2)MTC中3例轻度听力损失(≤15dB),4例听力损失≥20dB。A型鼓室声顺图4例,其中3例声反射正常,1例声反射消失;B型鼓室声顺图3例,手术发现砧镫关节受累,中耳内有渗液。(3)手术探查发现3例IMTC的胆脂瘤位于紧张
Eardrum complete primary cholesteatoma mostly congenital. Cases of “acquired” are rarely reported. The authors collected 15 cases from 1977 to 1980, including 5 cases of intramuscle cholesteatoma (IMTC), 3 males and 2 females, with an average age of 1 year and 7 months. 10 cases (5 males and 5 females, aged 17 months to 8 years old). Clinical data: (1) 4 cases of recurrent otitis media in IMTC 1 to 4 times, 8 cases of recurrent otitis media in MTC average 6 times. (2) MTC mild hearing loss in 3 cases (≤ 15dB), 4 cases of hearing loss ≥ 20dB. A type of tympanum Shun Figure 4 cases, of which 3 cases of normal acoustic reflex, 1 case of acoustic reflex disappeared; B-type tympanogram of Shun Figure 3 cases, the anvils and joints were found in the operation, there is exudate in the middle ear. (3) surgical exploration found that 3 cases of IMTC cholesteatoma in tension