King T T, Benjamin J C, Morrison A W
Department of Neurosurgery, London Hospital, Whitechapel, United Kingdom.
Br J Neurosurg. 1989;3(4):451-61. doi: 10.3109/02688698909002831.
Cystic lesions in the petrous apex are nearly always either epidermoid cysts, with a soft but solid content, or cholesterol cysts, containing brown fluid. They may be symptomless, produce progressive cranial nerve palsies or, occasionally, reach the CSF pathways thus leading either to meningitis or a CSF leak. Thirteen cases and four unverified cases have been encountered amongst a series of more than 500 cerebellopontine angle tumours. Their clinical features, radiological diagnosis and difficulties of surgical approach are discussed.
岩尖部的囊性病变几乎总是表皮样囊肿（内容物柔软但呈实性）或胆固醇囊肿（含褐色液体）。它们可能无症状，也可能导致进行性颅神经麻痹，或偶尔累及脑脊液通路，进而引发脑膜炎或脑脊液漏。在500多例桥小脑角肿瘤中，遇到了13例此类病例及4例未经证实的病例。文中讨论了它们的临床特征、放射学诊断及手术入路的难点。
