PMC3582070_01
Coronal CT of the abdomen demonstrates dilated, thick-walled appendix (arrow) containing an appendicolith.
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fig1
CT exam demonstrated a dilated, hyperenhancing, retrocecal appendix containing an appendicolith, indicative of acute appendicitis (Figure 1).
Axial CT demonstrates retroperitoneal air (arrows) anterior to the right and left common iliac arteries, and posterior to the left psoas muscle.
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fig2
In addition, small collections of air were seen anterior to the right and left common iliac arteries and posterior to both psoas muscles, locations that are considered retroperitoneal (Figures 2 and 3).
Retroperitoneal air (straight arrow) adjacent to inflamed, retrocecal appendix (curved arrow), seen on coronal (a) and sagittal (b) projections.
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fig3
In addition, small collections of air were seen anterior to the right and left common iliac arteries and posterior to both psoas muscles, locations that are considered retroperitoneal (Figures 2 and 3).