Tran Ba Huy P, Lévy C, Bensimon J L, Cophignon J
Ann Otolaryngol Chir Cervicofac. 1986;103(6):363-71.
Five cases of epidermoid cyst (or primary cholesteatoma) of petrous bone are described and the criteria necessary to consider these tumors as truly primary outlined. The most plausible theories appear to be either congenital: embryonic inclusions or, to a lesser degree, acquired: papillary proliferation. Emphasis is placed on facial signs, even minimal, associated with progressive perception or mixed unilateral deafness. Advantages and indications for different surgical approaches are discussed and the value of NMR imaging emphasized, both for diagnosis and postoperative follow up review, especially when a closed technique had been selected.
本文描述了5例岩骨表皮样囊肿（或原发性胆脂瘤），并概述了将这些肿瘤视为真正原发性肿瘤所需的标准。最合理的理论似乎要么是先天性的：胚胎性包涵体，要么在较小程度上是后天性的：乳头状增生。重点关注与进行性感音神经性或混合性单侧耳聋相关的面部体征，即使是轻微的体征。讨论了不同手术入路的优缺点和适应证，并强调了核磁共振成像在诊断和术后随访中的价值，尤其是在选择了闭合技术时。
