颞骨的骨瘤好发于乳突皮质和外耳道，亦可发生于乳突气房、中耳和内听道。在体格检查及影像学上可见其为孤立单发的肿块。内听道骨瘤位于内听道的内侧部分，为局灶性病变，而内听道的其余部位则有正常的直径。由于不能很方便的取到标本进行病理检查，所以诊断往往依赖于影像学 Temporal bone osteoma occurs in mastoid cortex and external auditory canal, can also occur in the mastoid atrium, middle ear and internal auditory canal. In physical examination and imaging can be seen as solitary lumps. The internal auditory canal sinoatrial stenosis is located in the medial part of the internal lesion, while the rest of the internal auditory canal has a normal diameter. Because it is not easy to get the specimens for pathological examination, diagnosis often depends on the imaging