Abstract:
:Extra-axial cerebellopontine angle (CPA) tumors account for approximately 10% of all brain neoplasms in adults. Vestibular schwannomas are the most common, followed by meningiomas. Gliomas in the CPA are rare and quite often are the exophytic extension of primary brain stem or cerebellar tumors. We describe a pilocytic astrocytoma of the CPA that was found to arise from the proximal portion of trigeminal nerve without any anatomic continuity with the brain stem and the cerebellum. Pre-operative MRI suggested a schwannoma. The proposed origin of this extremely rare tumor is the root entry zone of the involved nerve. The tumor was completely resected via a suboccipital retrosigmoid approach.
journal_name
J Neurooncoljournal_title
Journal of neuro-oncologyauthors
Francesco F,Maurizio I,Stefano C,Marina S,Ugo S,Massimo Sdoi
10.1007/s11060-009-0020-4subject
Has Abstractpub_date
2010-04-01 00:00:00pages
285-90issue
2eissn
0167-594Xissn
1573-7373journal_volume
97pub_type
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pub_type: 临床试验,杂志文章
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pub_type: 临床试验,杂志文章
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