Morphologic criteria of vermiform appendix on computed tomography and a possible risk of developing acute appendicitis
Abstract Objective: To evaluate the correlation of morphological criteria of the cecal appendix using computed tomography (CT) and the possible risk of developing acute appendicitis. Materials and Methods: Cases were defined as patients with surgically confirmed acute appendicitis who had undergon...
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doaj-7d51b541a42741fd981cda4fc6d80f5e2020-11-24T20:53:19ZengColégio Brasileiro de Radiologia e Diagnóstico por ImagemRadiologia Brasileira1678-709910.1590/0100-3984.2018.0118S0100-39842019005011101Morphologic criteria of vermiform appendix on computed tomography and a possible risk of developing acute appendicitisAmanda Chambi TamesFernando Ide YamauchiAdham do Amaral e CastroCaroline Duarte de Mello AmoedoEllison Fernando CardosoRonaldo Hueb BaroniAdriano TachibanaAbstract Objective: To evaluate the correlation of morphological criteria of the cecal appendix using computed tomography (CT) and the possible risk of developing acute appendicitis. Materials and Methods: Cases were defined as patients with surgically confirmed acute appendicitis who had undergone CT at least twice: at diagnosis and at least one month prior. Controls were defined as emergency patients with abdominal pain who had undergone abdominal CT that excluded acute appendicitis and had also undergone CT at least one month before. Results: 100 cases and 100 controls were selected for inclusion in the final analysis. Comparisons between the cases and controls revealed the following: mean transverse diameter of 0.6 cm (range, 0.4-1.0 cm) versus 0.6 cm (range, 0.6-0.8 cm; p = 0.37); mean length of 6.6 cm (range, 3.5-9.7 cm) versus 6.6 cm (range, 4.5-8.3 cm; p = 0.87); mean angle of 100° (range, 23-178°) versus 86° (range, 43-160°; p = 0.01); vertical descending orientation in 56% versus 45% (p = 0.2); absence of gas in 69% versus 77% (p = 0.34); and presence of an appendicolith in 17% versus 8% (p = 0.08). Conclusion: Hypothetical risk factors for obstruction of the vermiform appendix detected on CT were not associated with acute appendicitis. That suggests that factors other than those related to mechanical obstruction are implicated in the pathogenesis of acute appendicitis.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-39842019005011101&lng=en&tlng=enAppendicitisAppendixMultidetector computed tomographyEmergency medicine |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Amanda Chambi Tames Fernando Ide Yamauchi Adham do Amaral e Castro Caroline Duarte de Mello Amoedo Ellison Fernando Cardoso Ronaldo Hueb Baroni Adriano Tachibana |
spellingShingle |
Amanda Chambi Tames Fernando Ide Yamauchi Adham do Amaral e Castro Caroline Duarte de Mello Amoedo Ellison Fernando Cardoso Ronaldo Hueb Baroni Adriano Tachibana Morphologic criteria of vermiform appendix on computed tomography and a possible risk of developing acute appendicitis Radiologia Brasileira Appendicitis Appendix Multidetector computed tomography Emergency medicine |
author_facet |
Amanda Chambi Tames Fernando Ide Yamauchi Adham do Amaral e Castro Caroline Duarte de Mello Amoedo Ellison Fernando Cardoso Ronaldo Hueb Baroni Adriano Tachibana |
author_sort |
Amanda Chambi Tames |
title |
Morphologic criteria of vermiform appendix on computed tomography and a possible risk of developing acute appendicitis |
title_short |
Morphologic criteria of vermiform appendix on computed tomography and a possible risk of developing acute appendicitis |
title_full |
Morphologic criteria of vermiform appendix on computed tomography and a possible risk of developing acute appendicitis |
title_fullStr |
Morphologic criteria of vermiform appendix on computed tomography and a possible risk of developing acute appendicitis |
title_full_unstemmed |
Morphologic criteria of vermiform appendix on computed tomography and a possible risk of developing acute appendicitis |
title_sort |
morphologic criteria of vermiform appendix on computed tomography and a possible risk of developing acute appendicitis |
publisher |
Colégio Brasileiro de Radiologia e Diagnóstico por Imagem |
series |
Radiologia Brasileira |
issn |
1678-7099 |
description |
Abstract Objective: To evaluate the correlation of morphological criteria of the cecal appendix using computed tomography (CT) and the possible risk of developing acute appendicitis. Materials and Methods: Cases were defined as patients with surgically confirmed acute appendicitis who had undergone CT at least twice: at diagnosis and at least one month prior. Controls were defined as emergency patients with abdominal pain who had undergone abdominal CT that excluded acute appendicitis and had also undergone CT at least one month before. Results: 100 cases and 100 controls were selected for inclusion in the final analysis. Comparisons between the cases and controls revealed the following: mean transverse diameter of 0.6 cm (range, 0.4-1.0 cm) versus 0.6 cm (range, 0.6-0.8 cm; p = 0.37); mean length of 6.6 cm (range, 3.5-9.7 cm) versus 6.6 cm (range, 4.5-8.3 cm; p = 0.87); mean angle of 100° (range, 23-178°) versus 86° (range, 43-160°; p = 0.01); vertical descending orientation in 56% versus 45% (p = 0.2); absence of gas in 69% versus 77% (p = 0.34); and presence of an appendicolith in 17% versus 8% (p = 0.08). Conclusion: Hypothetical risk factors for obstruction of the vermiform appendix detected on CT were not associated with acute appendicitis. That suggests that factors other than those related to mechanical obstruction are implicated in the pathogenesis of acute appendicitis. |
topic |
Appendicitis Appendix Multidetector computed tomography Emergency medicine |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-39842019005011101&lng=en&tlng=en |
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