Association of primary intracranial meningioma and cutaneous meningioma of external auditory canal: a case report and review of the literature

Arch Pathol Lab Med. 1998 Jan;122(1):97-9.

Abstract

A cutaneous meningioma of the external auditory canal occurred in a 48-year-old Filipino woman who had undergone subtotal resection of a dural-based intracranial meningioma at the ipsilateral cerebellopontine angle 36 months previously. Radiologic findings demonstrated a recurrence of intracranial meningioma with surface erosion and heterogeneous densities of the mastoid bone, without extension to the area of the external auditory canal. Meningioma in the external ear canal is extremely rare. To our knowledge, there have been only two previously reported cases, both without intracranial lesion. In this case, the auditory canal lesion may represent either an ectopic meningioma arising from an arachnoid cell rest or an occult direct extension from intracranial menigioma.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Actins / analysis
  • Brain Neoplasms / chemistry
  • Brain Neoplasms / diagnostic imaging
  • Brain Neoplasms / pathology*
  • Chromogranins / analysis
  • Ear Canal*
  • Female
  • Humans
  • Immunohistochemistry
  • Keratins / analysis
  • Meningioma / chemistry
  • Meningioma / pathology
  • Meningioma / secondary*
  • Middle Aged
  • Mucin-1 / analysis
  • Neoplasms, Unknown Primary / chemistry
  • Neoplasms, Unknown Primary / diagnostic imaging
  • Neoplasms, Unknown Primary / pathology*
  • Skin Neoplasms / chemistry
  • Skin Neoplasms / pathology
  • Skin Neoplasms / secondary*
  • Synaptophysin / analysis
  • Tomography, X-Ray Computed

Substances

  • Actins
  • Chromogranins
  • Mucin-1
  • Synaptophysin
  • Keratins