Chronic constipation can lead to fecal impaction. It can also rarely lead to catastrophic complications like perforation, colonic obstruction, and fecal peritonitis. We report a rare case of stercoral sigmoid colonic perforation with fecal peritonitis and pneumoperitoneum, which was diagnosed on preoperative CT scan.

Sharma M, Agrawal A. Case report: Stercoral sigmoid colonic perforation with fecal peritonitis. Indian J Radiol Imaging 2010;20:126-8