Gacek R R
Otolaryngol Head Neck Surg (1979). 1980 Sep-Oct;88(5):519-23. doi: 10.1177/019459988008800502.
Primary cholesteatoma of the petrous apex is an uncommon congenital lesion that is suspected clinically by such indirect methods of examination as conventional and tomographic radiology, computerized axial tomographic scan, and angiography. If these indirect methods indicate a petrous apex lesion, the area should be investigated by biopsy through the sphenoid, middle fossa, or translabyrinthine routes. Tumor extension, sphenoid pneumatization, and normal labyrinthine function are factors that determine the surgical approach. Once a diagnostic surgical procedure confirms the presence of an epidermoid cyst at the petrous apex, permanent fistulization through the sphenoid or the middle ear is recommended as definitive management.
岩尖原发性胆脂瘤是一种罕见的先天性病变，临床上可通过传统放射学、断层放射学、计算机断层扫描和血管造影等间接检查方法怀疑其存在。如果这些间接方法提示岩尖病变，应通过经蝶窦、中颅窝或经迷路途径进行活检以进一步检查该区域。肿瘤扩展、蝶窦气化和迷路功能正常是决定手术入路的因素。一旦诊断性手术证实岩尖存在表皮样囊肿，建议通过蝶窦或中耳进行永久性造瘘作为确定性治疗。
