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Journal of Medical Case Reports -p6

Case report: A large dumbbell glossopharyngeal schwannoma involvin vagus nerve: a case report and review of the literature | Journal of Medical Case Reports BioMed Central Open Access Case report A large dumbbell glossopharyngeal schwannoma involving the vagus nerve a case report and review of the literature Hongyu Zhao1 Xiaodong Li1 Qingjie Lv2 Yuhui Yuan1 and Hongwei Yu 1 Address Department of Neurosurgery The Second Affiliated Hospital Shengjing Hospital China Medical University Shenyang 110004 PR China and 2Department of Pathology The Second Affiliated Hospital Shengjing Hospital China Medical University Shenyang PR China Email Hongyu Zhao - zhaocmu1974@yahoo.com.cn Xiaodong Li-lxd19760215@126.com Qingjie Lv-lvqjie@163.com YuhuiYuan-yuan_yuhui@hotmail.com HongweiYu -yuhw@cmu2h.com Corresponding author Published 27 October 2008 Received 27 December 2007 Journal of Medical Case Reports 2008 2 334 doi 10.1186 1752-1947-2-334 Accepted 27 October 2008 This article is available from http www.jmedicalcasereports.cOm content 2 1 334 2008 Zhao et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http creativecommons.org licenses by 2.0 which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Introduction Schwannoma arising from the glossopharyngeal nerve is a rare intracranial tumor. Fewer than 40 cases have been reported. Accurate pre-operative diagnosis and optimal treatment are still difficult. Case presentation We present one case of schwannoma originating from the ninth cranial nerve with palsies of the trigeminal nerve facial-acoustic nerve complex and vagus nerve in addition to ninth nerve dysfunction. Magnetic resonance imaging showed tumors located in the cerebellopontine angle with extracranial extension via the jugular foramen with evident enhancement on post-contrast scan. Surgical management single-staged with the help of gamma knife radiosurgery achieved total removal. Conclusion Glossopharyngeal schwannoma is devoid of .