Last reviewed: November 2017
Last updated: November  2017

Summary

Definition

History and exam

Key diagnostic factors

  • hearing loss
  • ear discharge resistant to antibiotic therapy
  • attic crust in retraction pocket
  • white mass behind intact tympanic membrane

Other diagnostic factors

  • tinnitus
  • otalgia
  • altered taste
  • dizziness
  • facial nerve weakness

Risk factors

  • middle ear disease
  • eustachian tube dysfunction
  • otologic surgery
  • traumatic blast injury to ear
  • congenital anomalies
  • family history

Diagnostic investigations

1st investigations to order

  • pure tone audiogram
  • CT scan of the petrous temporal bones
Full details

Investigations to consider

  • fistula test
  • MRI scan of the petrous temporal bones
  • bacterial culture
Full details

Treatment algorithm

ACUTE

Contributors

Authors VIEW ALL

Consultant Otolaryngologist and Otologist

Rotherham NHS Foundation Trust

Rotherham

UK

Disclosures

SAD declares that she has no competing interests.

Peer reviewers VIEW ALL

Professor and Vice Chairman of Otolaryngology

Case Western Reserve University School of Medicine

Cleveland

OH

Disclosures

CM is an author of a reference cited in this monograph.

Senior Lecturer in Otolaryngology

Honorary Consultant Otolaryngologist

Glasgow Royal Infirmary

Glasgow

UK

Disclosures

IS declares that he has no competing interests.

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