Appendicitis CT
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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: Farwa Haideri [2]
Overview
CT scans are the diagnostic test of choice for detecting appendicitis. Findings on CT scan suggestive of appendicitis include appendicial wall thickening along with peri-appendiceal inflammation.
CT
CT scan may be helpful in the diagnosis of appendicitis. A properly performed CT scan with modern equipment has a detection rate of over 95%. Findings on CT scan suggestive of appendicitis include:[1]
- Increase in appendiceal lumen with the outer-wall-to-outer-wall transverse diameter greater than 6 mm.[2]
- Appendiceal wall thickening (wall ≥ 3mm)[3]
- Appendiceal wall hyperenhancement
- Mural stratification of the appendiceal wall
- Periappendiceal inflammation includes:[3]
- Periappendiceal fat stranding
- Thickening of the lateral conal fascia, and mesoappendix
- Extraluminal fluid
- Phlegmon
- Abscess
- Ileocecal mild lymph node enlargement
- Inflammatory thickening of contiguous structures
References
- ↑ Appendicitis. Wikipedia (26 November 2015).https://en.wikipedia.org/wiki/Appendicitis#Imaging Accessed on December 7, 2015
- ↑ Webb EM, Wang ZJ, Coakley FV, Poder L, Westphalen AC, Yeh BM (2010). "The equivocal appendix at CT: prevalence in a control population". Emerg Radiol. 17 (1): 57–61. doi:10.1007/s10140-009-0826-6. PMC 2773125. PMID 19597855.
- ↑ 3.0 3.1 Choi D, Park H, Lee YR, Kook SH, Kim SK, Kwag HJ, Chung EC (2003). "The most useful findings for diagnosing acute appendicitis on contrast-enhanced helical CT". Acta Radiol. 44 (6): 574–82. PMID 14616200.