title: Prevention of CSF Leakage by Staged Operation for Clival Metastatic Tumor.
abstract: The transoral approach is a direct route to the clivus. However, application of this approach is infrequent because of the risk of cerebrospinal fluid (CSF) fistula and subsequent meningitis. We report a case of clival metastatic tumor treated by staged operation without CSF leakage. A 39-year-old man was found to have a tumor in clivus extending to the intradural space. Two-staged resection through the lateral suboccipital and transoral approach was performed and the dural defect was replaced by a fascia in the first operation. CSF leakage was prevented by this procedure. The patient received radiotherapy postoperatively.
authors.forename: K
authors.initials: K
authors.lastname: Sako
authors.forename: T
authors.initials: T
authors.lastname: Kimura
authors.forename: A
authors.initials: A
authors.lastname: Sawamura
authors.forename: Y
authors.initials: Y
authors.lastname: Yonemasu
authors.forename: M
authors.initials: M
authors.lastname: Takahashi
authors.forename: N
authors.initials: N
authors.lastname: Miyokawa