本文对胆脂瘤150例(155耳)的X线表现与手术所见进行对照观察,结果表明:X线能诊断者115耳(占74%),不能诊断者40耳(占26%)。不能诊断的原因主要是因胆脂瘤发生在鼓窦入口处,其次为鼓窦内的胆脂瘤较小。观察胆脂瘤以M位较优越。颅内并发症与胆脂瘤的大小无正比关系,可能与乳突气化的类型和胆脂瘤边缘有无硬化带有关。 In this paper, 150 cases of cholesteatoma (155 ears) X-ray findings and surgical findings were observed, the results showed that: X-ray diagnosis of 115 ears (74%), can not diagnose 40 ears (26%). Can not be diagnosed mainly because of cholesteatoma occurred in the entrance to the drum, followed by the smaller sinus cholesteatoma. Cholesteatoma observed in M-bit superior. There is no direct relationship between intracranial complications and the size of cholesteatoma, which may be related to the type of mastoid gasification and the presence or absence of scleroses in the margin of cholesteatoma.