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Schwannoma del nervio facial como diagnóstico diferencial de tumor parotídeo: reporte de un caso / Facial nerve Schwannoma resembling a parotid tumor: case report
Lobos M., Adriana; Cardemil M., Felipe; Villagrán R., Diego.
  • Lobos M., Adriana; Universidad de Valparaíso. Escuela de Medicina. Valparaíso. CL
  • Cardemil M., Felipe; Universidad de Valparaíso. Escuela de Medicina. Valparaíso. CL
  • Villagrán R., Diego; Universidad de Valparaíso. Escuela de Medicina. Valparaíso. CL
Rev. chil. cir ; 61(6): 556-559, dic. 2009. ilus
Article in Spanish | LILACS | ID: lil-556691
RESUMEN
Los schwannomas del nervio facial son lesiones benignas originadas de las células de Schwann, de crecimiento lento y predecible, generalmente asintomáticas. Sólo el 9 por ciento de los casos se ubica en la porción intraparotídea del nervio facial, lo cual obliga al diagnóstico diferencial con otros tumores parotídeos. Reportamos un caso de schwannoma del nervio facial izquierdo de ubicación intraparotídea, el cual fue confirmado mediante estimulación eléctrica intraoperatoria y resecado con intención conservadora del nervio facial. Además, se revisa la literatura actual sobre el tema.
ABSTRACT
Facial nerve Schwannomas are benign tumors that originate from Schwann cells, with a slow and predictable growth, and that are generally asymptomatic. Only 9 percent of these tumors are located in the intraparotid segment of the facial nerve. We report a 26 years old female presenting with a mass in the left parotid region lasting four months. The patient was subjected to a parotidectomy. During surgery, an encapsulated tumor whose origin was in the seventh cranial nerve and associated to a lymph node was found. The tumor was excised, trying to preserve the integrity of the nerve. The pathological diagnosis of the surgical piece disclosed a benign Schwannoma. The patient had a facial paralysis in the postoperative period.
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Full text: Available Index: LILACS (Americas) Main subject: Parotid Gland / Cranial Nerve Neoplasms / Facial Nerve / Neurilemmoma Type of study: Diagnostic study / Prognostic study Limits: Adult / Female / Humans Language: Spanish Journal: Rev. chil. cir Journal subject: General Surgery Year: 2009 Type: Article Affiliation country: Chile Institution/Affiliation country: Universidad de Valparaíso/CL

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Full text: Available Index: LILACS (Americas) Main subject: Parotid Gland / Cranial Nerve Neoplasms / Facial Nerve / Neurilemmoma Type of study: Diagnostic study / Prognostic study Limits: Adult / Female / Humans Language: Spanish Journal: Rev. chil. cir Journal subject: General Surgery Year: 2009 Type: Article Affiliation country: Chile Institution/Affiliation country: Universidad de Valparaíso/CL