Sigmoid colon perforation at CT colonography secondary to a possible obstructive mechanism: report of a case.

Belo-Oliveira, Pedro; Curvo-Semedo, Luis; Rodrigues, Henrique; Belo-Soares, Pedro; Caseiro-Alves, Filipe · Dis Colon Rectum · 2007

case_report · Level V

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Abstract

We report a case of colonic perforation in CT colonography, which was observed in a sigmoid colon segment contained within an inguinal hernia. At surgery, apart from the perforation, a normal large-bowel wall was found. Although rare, perforation may occur in patients with normal bowel wall, possibly resulting from a mechanical strain caused by gaseous overdistention. Radiologists performing the procedure must be aware of this possibility.

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