Otitis externa
Last revised by Avni K P Skandhan on 26 Feb 2018
Citation, DOI, disclosures and article data
Citation:
Weerakkody Y, Skandhan A, Smith D, et al. Otitis externa. Reference article, Radiopaedia.org (Accessed on 20 Apr 2024) https://doi.org/10.53347/rID-37976
Permalink:
rID:
37976
Article created:
28 Jun 2015,
Yuranga Weerakkody ◉
Disclosures:
At the time the article was created Yuranga Weerakkody had no recorded disclosures.
View Yuranga Weerakkody's current disclosures
Last revised:
26 Feb 2018,
Avni K P Skandhan
Disclosures:
At the time the article was last revised Avni K P Skandhan had no recorded disclosures.
View Avni K P Skandhan's current disclosures
Revisions:
4 times, by
4 contributors -
see full revision history and disclosures
Systems:
Tags:
Synonyms:
- Inflammation of the external ear
- External ear infection
- External ear inflammation
Otitis externa refers to inflammation of the external ear.
Epidemiology
It is quite a common condition and may affect up to 10% of people during their lifetime.
Pathology
It can present in several forms:
Etiology
There are several known risk factors which include 1:
- swimming
- a humid environment
- narrow ear canals
- hearing-aid use
- mechanical trauma
It may be associated with several micro-organisms. The commonest include
- Pseudomonas aeruginosa
- Staphylococcus aureus
Quiz questions
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References
- 1. Hajioff D, MacKeith S. Otitis externa. BMJ Clin Evid.2015: . Pubmed citation
- 2. Hajioff D, Mackeith S. Otitis externa. BMJ Clin Evid.2010: . Free text at pubmed - Pubmed citation
- 3. Jayakar R, Sanders J, Jones E. A study of acute otitis externa at Wellington Hospital, 2007-2011. Australas Med J. 2014;7 (10): 392-9. doi:10.4066/AMJ.2014.2094 - Free text at pubmed - Pubmed citation
- 4. Kaushik V, Malik T, Saeed SR. Interventions for acute otitis externa. Cochrane Database Syst Rev. 2010; (1): CD004740. doi:10.1002/14651858.CD004740.pub2 - Pubmed citation
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