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Meningiomas of the cerebellopontine angle.
Voss, N F; Vrionis, F D; Heilman, C B; Robertson, J H.
Afiliação
  • Voss NF; Department of Neurosurgery, University of Tennessee, Memphis 38163, USA.
Surg Neurol ; 53(5): 439-46; discussion 446-7, 2000 May.
Article em En | MEDLINE | ID: mdl-10874142
BACKGROUND: Meningiomas of the cerebellopontine angle (CPA), although uniform in location, are diverse with regard to the site of dural origin and displacement of neurovascular structures. A study of patients with CPA meningiomas was undertaken to gain more information regarding the relationship between site of dural attachment, clinical presentation, operative approach, and outcome. METHODS: In this report, we retrospectively review 40 patients with CPA meningiomas managed surgically. RESULTS: Common clinical presentations were hearing loss, unsteadiness, and dysequilibrium. Findings upon physical examination included hearing loss (73%), cerebellar signs (32%), trigeminal neuropathy (16%), and facial nerve dysfunction (16%). The most common site of dural origin was the petrous ridge (anterior to the IAC [26%], posterior [21%], superior [18%], and inferior [16%]). Less common sites of dural origin included the tentorium (31%), the clivus (15%), the IAC (10%), and the jugular foramen (8%). Site of dural origin determined the direction of displacement of the facial/vestibulocochlear nerve bundle. The most common microsurgical complication was facial nerve dysfunction (30%). Gross total resection was achieved in 82% of cases, whereas 18% underwent subtotal resection. Two patients died. Follow-up ranged from three months to 13 years with three recurrences. CONCLUSIONS: CPA meningiomas displace the seventh and eighth cranial nerves in various directions depending on the site of dural origin. Total surgical excision can be accomplished in the majority of cases with acceptable morbidity.
Assuntos
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Base de dados: MEDLINE Assunto principal: Neoplasias Cerebelares / Ângulo Cerebelopontino / Meningioma Idioma: En Ano de publicação: 2000 Tipo de documento: Article
Buscar no Google
Base de dados: MEDLINE Assunto principal: Neoplasias Cerebelares / Ângulo Cerebelopontino / Meningioma Idioma: En Ano de publicação: 2000 Tipo de documento: Article