上皮样肿瘤发生于颅骨时多见于额顶骨,亦有称好发于颅骨的颅盖部,颅顶骨。我们见到一例发生在右侧颞骨岩部,属少见病变,故报告如下: 患者:女,31岁。因右耳鸣,右面部抽动,表情不自然5个月而入院。①查体:耳鼻无异常分泌物,乳突无压痛,右侧面部葱皮样痛觉减退,右混合性耳聋。②x线检查:斯氏位、内听道平片及体层摄影片示:右侧颞骨岩部后方可见圆形骨质破坏区,直径约1.2cm,边缘锐利,有硬化边缘,破坏区稍侵及右侧内听道。⑧MR检查:右侧内听道口有一小圆形高信号影,大小约1.1cm×0.6cm,信号均一,边缘锐利 Epithelial tumors occur in the skull more common in the parietal bone, also known to occur in the skull of the cranial cap, parietal. We see an example occurred in the right temporal bone rock, is a rare disease, it is reported as follows: Patients: Female, 31 years old. Due to right tinnitus, right facial twitching, expression is not natural for 5 months and admitted to hospital. ① examination: no abnormal secretion of the ear and nose, papillae no tenderness, onions on the right facial pain relief, mixed deafness on the right. ② x-ray examination: Steinbach, the internal auditory canal plain film and tomography shows: the right temporal bone rock rear circular bone destruction area can be seen, a diameter of about 1.2cm, sharp edges, with hardened edges, the destruction of slightly infiltrated areas Right internal auditory canal. ⑧ MR examination: the right side of the audible tract there is a small circular high signal shadow, the size of about 1.1cm × 0.6cm, the signal is uniform, sharp edges