Primary external auditory canal meningioma: Case report and review of the literature

Am J Otolaryngol. 2022 Jan-Feb;43(1):103215. doi: 10.1016/j.amjoto.2021.103215. Epub 2021 Sep 11.

Abstract

Meningiomas are tumors that arise from arachnoid cells attached to both the pia mater and the inner portion of the arachnoid. They are common intracranial tumors, representing 12-25% of intracranial neoplasms. Intracranial meningiomas can spread extracranially to involve surrounding structures, including the ear and temporal bone. Ectopic meningiomas, described as primary meningiomas with no intracranial involvement, are rare. We describe a case of a primary external auditory canal meningioma with no evidence of intracranial involvement. We present pre-operative imaging findings proving no intracranial involvement prior to surgical intervention. A literature review of this uncommon clinical entity is presented and a discussion regarding its prognosis and treatment is reviewed.

Keywords: Ear canal mass; Ear canal meningioma; Extracranial meningioma; Primary meningioma; Temporal bone meningioma.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Ear Canal*
  • Ear Neoplasms / diagnostic imaging*
  • Ear Neoplasms / pathology
  • Ear Neoplasms / surgery
  • Humans
  • Meningioma / diagnostic imaging*
  • Meningioma / pathology
  • Meningioma / surgery
  • Prognosis
  • Rare Diseases