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J Korean Neurosurg Soc. 2007 May;41(5):347-351. English. Note.
Kim EM , Nam SI .
Department of Neurosurgery, Skull Base Surgery Division, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea. bach1158@dsmc.or.kr
Department of Otorhinolaryngology, Skull Base Surgery Division, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea.
Abstract

The authors present a new technique for surgery of cholesterol granuloma (CG) at the petrous apex. An epidural middle fossa approach is used to expose and remove the cyst, with silicon tube drainage into the sphenoid sinus via the anterolateral cavernous sinus triangle between the first and second divisions of the trigeminal nerve. This novel method is less invasive skull base approach to the petrous apex and very effective for minimizing recurrence of CGs within the petrous apex.

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