Symptomatic Lipoma of the Internal Auditory Canal: CT and MRI Findings. A Case Report

Neuroradiol J. 2014 Sep;27(4):479-81. doi: 10.15274/NRJ-2014-10077. Epub 2014 Aug 29.

Abstract

We describe the case of a 39-year-old man in whom diagnostic work-up for combined right-sided hearing loss revealed a lipoma of the internal auditory canal (IAC). This very rare diagnosis has significant implications for therapeutic management because lipomas, unlike other lesions in the IAC, should not be surgically removed in most cases. We emphasize the importance of the combined use of magnetic resonance imaging and computed tomography to reliably establish the diagnosis of a lipoma, differentiate it from other potential lesions of the internal auditory canal, and exclude additional pathologies in the petrosal bone.

Keywords: computed tomography; hearing loss; internal auditory canal; lipoma; magnetic resonance imaging.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Audiometry, Pure-Tone
  • Ear Canal / diagnostic imaging*
  • Ear Neoplasms / diagnostic imaging*
  • Hearing Loss, Mixed Conductive-Sensorineural / diagnosis*
  • Hearing Loss, Mixed Conductive-Sensorineural / etiology
  • Humans
  • Lipoma / diagnostic imaging*
  • Magnetic Resonance Imaging
  • Male
  • Tomography, X-Ray Computed