Appendicitis classification: Difference between revisions
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===Based on Perforation=== | ===Based on Perforation=== | ||
* Perforating - increases in incidence with age <ref name="pmid2784936">{{cite journal |author=Luckmann R |title=Incidence and case fatality rates for acute appendicitis in California. A population-based study of the effects of age |journal=Am. J. Epidemiol. |volume=129 |issue=5 |pages=905–18 |year=1989 |month=May |pmid=2784936 |doi= |url=}}</ref> | * Perforating - increases in incidence with age,<ref name="pmid2784936">{{cite journal |author=Luckmann R |title=Incidence and case fatality rates for acute appendicitis in California. A population-based study of the effects of age |journal=Am. J. Epidemiol. |volume=129 |issue=5 |pages=905–18 |year=1989 |month=May |pmid=2784936 |doi= |url=}}</ref> and is associated with the following types of bacterial infiltration: | ||
**[[Escherichia coli]] | **[[Escherichia coli]] | ||
**[[Peptostreptococcus]] | **[[Peptostreptococcus]] | ||
Revision as of 13:00, 16 May 2013
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Appendicitis On the Web |
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American Roentgen Ray Society Images of Appendicitis |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Charmaine Patel, M.D. [2]
Overview
Appendicitis may be classified at three levels. As appendicitis often results from appendiceal obstruction leading to necrosis and infection, it may be classified based on the cause of the the obstruction. It also can be classified based on the organism causing this infection, or on whether it is perforating or non-perforating.
Classification
Based on Type of Obstruction
- Infectious processes
- Fibrosis - such as due to scar tissue from a previous surgery.
- Fecaliths - hard fecal masses.
- Neoplasia - carcinoid, adenocarcinoma, or mucocoele.
- Parasites - in endemic areas.
- Calculi
- Lymphoid hyperplasia
Based on Perforation
- Perforating - increases in incidence with age,[1] and is associated with the following types of bacterial infiltration:
- Escherichia coli
- Peptostreptococcus
- Bacteroides fragilis
- Pseudomonas species
- Non-perforating