Case contributed by A.Prof Frank Gaillard


Right flank pain. Renal colic?

Patient Data

Age: 30 years
Gender: Male


Non contrast CT KUB obtained to evaluate for renal stones demonstrates the appendix, located behind and lateral to the cecum (paracecal), with evidence of acute inflammation and a luminal fecolith at its base.  No renal or ureteric calculi. No free gas. 

Annotated image

Annotated images

Coronal and axial images demonstrate the appendix (blue dotted line) to be located to lateral to the cecum (green dotted line) with extensive surrounding fat stranding. At the neck of the appendix is a calcific density consistent with an appendicolith (orange arrow). 

Case Discussion

This case illustrates how a less common location of the appendix (in this case paracecal) can result in atypical presentation which can mimic other pathologies. 

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Case information

rID: 12510
Published: 7th Dec 2010
Last edited: 13th Aug 2019
Inclusion in quiz mode: Included

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