Incidental large fecolith

Case contributed by Craig Hacking
Diagnosis not applicable


Left flank pain. Previous renal colic.

Patient Data

Age: 65 years
Gender: Male

Nonobstructing left sided renal calculi, measuring up to 8 mm at the left kidney upper pole. No ureteric or bladder calculi. No hydronephrosis or hydroureter. No perirenal or periureteric fat stranding. The bladder is unremarkable.

The remainder of the abdominal organs are normal. Multiple surgical anastomoses within the bowel. No bowel inflammation identified within the limitation of a noncontrast study. No bowel dilatation appreciated. Calcific densities are evident within the cecum, of uncertain etiology, measuring up to 25 mm in keeping with feacoliths. No intra-abdominal free fluid or free air. Bilateral fat containing inguinal hernias with no evidence of inflammation.

No lymphadenopathy. Lung bases are clear. Bilateral L5 pars defects with grade 1 anterolisthesis of L5 on S1. Multilevel intervertebral disc degeneration and bilateral facet joint arthropathy. No destructive osseous lesion.


Nonobstructing left renal calculi. No ureteric or bladder calculi or evidence of renal tract obstruction.


The left upper pole intrarenal calculus is unchanged in position, just lateral and superior to the tip of the elongated L1 transverse process. In the right side of the abdomen is a rectangular laminated calcified structure which represents a fecolith as demonstrated on the CT KUB. No bowel dilatation.

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