What is a furuncle and is it an indication of otitis externa (OE)?

Updated: Mar 09, 2020
  • Author: Ariel A Waitzman, MD, FRCSC; Chief Editor: Ravindhra G Elluru, MD, PhD  more...
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Answer

A furuncle is usually caused by staphylococcal infection of a hair follicle. This infection occurs in the lateral cartilaginous hair-bearing portion of the EAC. On otoscopic examination, a furuncle appears as a localized process, which may develop into an abscess, rather than as a diffuse inflammatory process, as is characteristic of OE.


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