Sandbox:Otitis externa causes

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Luke Rusowicz-Orazem, B.S.

Overview

The primary cause of otitis externa is bacterial; the majority of cases result from Pseudomonas aeruginosa or Staphylococcus aureus infections. Otomycosis can cause otitis externa, with primary infectious fungi including Candida albicans and Aspergillus niger. Allergy-caused dermatitis can cause non-infectious otitis externa if they spread to the ear canal, including inflammatory dermatoses such as eczema, seborrhea, and psoriasis. Contact dermatitis can cause otitis externa from allergic reactions to cosmetic chemicals and metals. Rarely, psoriasis therapy secukinumab can cause otitis externa as an adverse reaction.

Causes

Causes of otitis externa include all sources ofinflammation of the external ear canal.[1]

Bacterial

Fungal

Allergic Reactions

Drug interaction

References

  1. 1.0 1.1 Hajioff D, Mackeith S (2008). "Otitis externa". BMJ Clin Evid. 2008. PMC 2907945. PMID 19450296.
  2. 2.0 2.1 Williams, K. P.; Gillespie, J. J.; Sobral, B. W. S.; Nordberg, E. K.; Snyder, E. E.; Shallom, J. M.; Dickerman, A. W. (2010). "Phylogeny of Gammaproteobacteria". Journal of Bacteriology. 192 (9): 2305–2314. doi:10.1128/JB.01480-09. ISSN 0021-9193.
  3. Roland PS, Stroman DW (2002). "Microbiology of acute otitis externa". Laryngoscope. 112 (7 Pt 1): 1166–77. doi:10.1097/00005537-200207000-00005. PMID 12169893.
  4. "Swimmer's ear : MedlinePlus Medical Encyclopedia".
  5. 5.0 5.1 Rosenfeld, R; Brown, L; Cannon, C; Dolor, R; Ganiats, T; Hannley, M; Kokemueller, P; Marcy, S; Roland, P; Shiffman, R (2006). "Clinical practice guideline: Acute otitis externa". Otolaryngology - Head and Neck Surgery. 134 (4): S4–S23. doi:10.1016/j.otohns.2006.02.014. ISSN 0194-5998.
  6. Kang K, Stevens SR. Pathophysiology of atopic dermatitis. Clin Dermatol 2003;21:116–121.
  7. "DailyMed - COSENTYX- secukinumab injection".

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