Malignant schwannoma of the soft palate: A case report

Authors

  • João Rego Interno do internato complementar de ORL do Hospital Fernando Fonseca, Lisboa, Portugal
  • Sara Ramalho Interno do internato complementar de ORL do Hospital Fernando Fonseca, Lisboa, Portugal
  • Cristina Adónis Assistente Hospitalar do serviço de ORL do Hospital Fernando Fonseca, Lisboa, Portugal
  • Pedro Montalvão Assistente Hospitalar Graduado do serviço de ORL do Instituto Português de Oncologia de Lisboa, Francisco Gentil, Lisboa, Portugal
  • Vítor Gabão Veiga Director de serviço de ORL do Hospital Fernando Fonseca, Lisboa, Portugal

DOI:

https://doi.org/10.34631/sporl.180

Keywords:

malignant schwannoma, soft palate

Abstract

Schwannomas are benign nerve-sheath tumors arising from Schwann cells of sheaths of peripheral nerves.

They may take origin from many different nerve types and may be found intra-, extra-, or transcranially. A rare site for schwannoma is oral cavity.

The prognosis of schwannoma is favorable and conservative surgical removal is the treatment of choice.

Malignant transformation of benign schwannomas is rare and despite postoperative radiation therapy and chemotherapy, malignant schwannomas are usually resistant to both.

We report a case of a malignant schwannoma of the palate in a 43 year old man with a 1 year history of disphagia and disphonia. He was submitted to surgical removal and postoperative radiation therapy. After 1 year there are no signs of recurrence. The significance of this case lies in the unusual diagnosis of malignant schwannoma in a solitary and encapsulated aparently benign mass.

References

-Sawheney R, Carron MA, Mathog RH. Tongue base schwannoma: report, review and unique surgical approach. Am J Otolaryngol. 2008; 29:119-22.

-Suriano M, de Vincentiis M, Mascelli A, Calabrese V, et al.. Parapharyngeal high-grade malignant schwannoma with extension to infratemporal and pterygopalatine fossa. Otolaryngol Head Neck Surg. 2007; 137:839-40.

-Nedim H, Akdogan O, Arda N, Sarikaya Y. An Unusual Site for an Intraoral Schwannoma: A Case Report. Am J Otolaryngol. 2003; 24(5): 348-50.

-Yang S W, Lin CY. Schwannoma of the Upper Lip: Case Report and Literature Review. Am J Otolaryngol. 2003; 24(5): 351-354.

How to Cite

Rego, J., Ramalho, S., Adónis, C., Montalvão, P., & Veiga, V. G. (2011). Malignant schwannoma of the soft palate: A case report. Portuguese Journal of Otorhinolaryngology and Head and Neck Surgery, 49(3), 173–175. https://doi.org/10.34631/sporl.180

Issue

Section

Case Report