Severe progressive sensorineural hearing loss improved after removal of large jugular foramen schwannoma

Naoki Oishi, Naoyuki Kohno, Yoshiaki Shiokawa

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We report a very rare case of hearing improvement after removal of the intracranial part of a jugular foramen schwannoma (JFS) presenting with chronic and severe progressive sensorineural hearing loss (SNHL). The patient presented with progressive hearing impairment in his right ear, lasting 2 years. The patient's pure tone audiogram revealed severe SNHL. His speech discrimination score (SDS) was 0%. Auditory-evoked brain responses (ABRs) comprised only I waves following 30-100. dB stimulation, although distortion-product otoacoustic emissions (DPOAEs) had good responses. These test results indicated that his hearing impairment was retrocochlear SNHL. Magnetic resonance imaging revealed within the right jugular foramen a large intracranial-extracranial tumor that compressed the brainstem. The intracranial part of the tumor was resected through retrosigmoidal craniotomy, and the tumor was pathologically diagnosed as a schwannoma. Several months after the operation, the patient's auditory thresholds improved to a level consistent with mild SNHL, ABR V waves emerged following 60-90. dB stimulation, and SDS improved significantly to 95%. This case demonstrates that hearing improvement can be achieved after surgery for JFS presenting with severe and chronic progressive SNHL, and that good DPOAE responses and the presence of ABR I waves may be predictors of postoperative hearing recovery in JFS.

Original languageEnglish
Pages (from-to)398-401
Number of pages4
JournalAuris Nasus Larynx
Volume38
Issue number3
DOIs
Publication statusPublished - 2011 Jun
Externally publishedYes

Fingerprint

Sensorineural Hearing Loss
Neurilemmoma
Neck
Auditory Evoked Potentials
Hearing
Speech Perception
Hearing Loss
Retrocochlear Diseases
Brain
Auditory Threshold
Brain Stem Neoplasms
Craniotomy
Ear
Neoplasms
Magnetic Resonance Imaging

Keywords

  • Auditory-evoked brain response
  • Chronic
  • Compression neuropathy
  • Distortion-product otoacoustic emissions
  • Hearing improvement
  • Retrocochlear hearing loss

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Surgery

Cite this

Severe progressive sensorineural hearing loss improved after removal of large jugular foramen schwannoma. / Oishi, Naoki; Kohno, Naoyuki; Shiokawa, Yoshiaki.

In: Auris Nasus Larynx, Vol. 38, No. 3, 06.2011, p. 398-401.

Research output: Contribution to journalArticle

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