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Revista argentina de cirugía

versão impressa ISSN 2250-639Xversão On-line ISSN 2250-639X

Resumo

MONTESINOS, Manuel R; FERRO, Paula C  e  LOTTI, Alejandro. Schwannoma de glosofaríngeo: Causa infrecuente de tumor parafaríngeo. Rev. argent. cir. [online]. 2013, vol.105, n.1, pp.47-50. ISSN 2250-639X.

Background: Parapharyngeal schwannomas are unfrequent, benign, slow growing tumors that usually arise from the vagus nerve or the cervical sympathetic chain. Objective: To describe clinical presentation, preoperative diagnosis, surgical management and outcome of a patient with a parapharyngeal schwannoma originated from the glossophayngeal nerve. Setting: Private practice. Design: Retrospective observational. Population: One female patient with symptomatic glossopharyngeal schwannoma. Method: Review of clinical record and pathological report. Results: A 34-year-old woman was referred with a three months history of nasal breathing complaint, odynophagia, and dysphagia. On physical examination, a submucosal tumor was observed in the right wall of the oropharynx, displacing the right tonsil and the soft palate. Preoperative radiographic cross-sectional images showed a right parapharyngeal space mass, suggestive of a schwannoma, with posterolateral displacement of the carotid artery. Surgical excision of the lesion was undertaken via a right cervicalparotid approach. An extreme bradycardia episode occurred while handling the tumor. Postoperatively, there was mild right facial weakness, swallowing complaint with microaspirations, which improved over the following months with specialized rehabilitation. Pathologic diagnosis was schwannoma. Conclusions: Extracranial glossopharyngeal schwannoma can be suspected when a parapharyngeal tumor produces a posterolateral displacement of the carotid artery, determined by cross-sectional imaging. Preoperative diagnosis allows effective preoperative counseling regarding the expected sequelae of surgical resection.

Palavras-chave : Glossopharyngeal schwannoma; Parapharyngeal tumour.

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