Appendicular abscess causes

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Aditya Ganti M.B.B.S. [2]

Overview

Microbiology responsible for appendicualr abscess includes a mixture of aerobic and anaerobic organisms that are natural habitat of gut. The most commonly isolated aerobic organism is Escherichia coli, and the most commonly observed anaerobic organism is Bacteroides fragilis. The type and density of aerobic and anaerobic bacteria isolated from appendicular abscesses depends upon the organism that dominate the habitat and degree of obstruction.

Causes of Appendicular abscess

Natural gut flora which includes Gram-negative and anaerobic bacteria play a major role in the development of appendicular abscess.^[1]

Most common causes

Less common causes

Aerobic bacteria	Anaerobes bacteria
Enterococcus Escherichia coli Klebsiella pneumoniae Pseudomonas aeruginosa Staphylococcus aureus Proteus	Bacteroides fragilis Clostridium perfringens

References

↑ Solomkin JS, Mazuski JE, Bradley JS, Rodvold KA, Goldstein EJ, Baron EJ; et al. (2010). “Diagnosis and management of complicated intra-abdominal infection in adults and children: guidelines by the Surgical Infection Society and the Infectious Diseases Society of America”. Clin Infect Dis. 50 (2): 133–64. doi:10.1086/649554. PMID 20034345.

[pmid20034345-1] Solomkin JS, Mazuski JE, Bradley JS, Rodvold KA, Goldstein EJ, Baron EJ; et al. (2010). “Diagnosis and management of complicated intra-abdominal infection in adults and children: guidelines by the Surgical Infection Society and the Infectious Diseases Society of America”. Clin Infect Dis. 50 (2): 133–64. doi:10.1086/649554. PMID 20034345.

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