Escher F, Fisch U
HNO. 1982 Jan;30(1):25-9.
The congenital cholesteatoma of the petrous bone is a rarity. The topographic situation corresponds to a congenital dermoid. The evolution is typic. On the beginning the ear drum is intact, very early one will find a loss of the labyrinth function, often accompanied by a facial paresis. The suppuration of the middle ear comes in a later state. The drainage operation is insufficient. The subtotal petrosectomy with permanent anterior dislocation of the facial nerve gives the chance for a definitive healing.
岩骨先天性胆脂瘤较为罕见。其部位与先天性皮样囊肿相符。病程典型。起初鼓膜完整，很快会出现迷路功能丧失，常伴有面瘫。中耳化脓出现在较晚阶段。引流手术效果不佳。面神经永久性前移位的岩骨次全切除术为彻底治愈提供了机会。
