What is the pathophysiology of peritonsillar abscess (PTA)?

Updated: Apr 06, 2020
  • Author: Udayan K Shah, MD, FACS, FAAP; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Answer

A polymicrobial flora is isolated from peritonsillar abscesses (PTAs). Predominant organisms are the anaerobes Prevotella, Porphyromonas, Fusobacterium, and Peptostreptococcus species. Major aerobic organisms are GABHS, S aureus, and H influenzae.

Uhler et al, in an analysis of data from 460 patients with PTA, found a higher incidence of the condition in smokers than in nonsmokers. [6]


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