Colonic Obstruction due to Biliary Calculus: A Rare Case

Résumé

Colic obstruction due to a gallstone impacted at the sigmoid colon is a rare entity.  

Despite its rarity, the radiologist should be aware of it is existence, allowing a prompt diagnosis and treatment. 

This article describes an 83 years old male patient with a six-day history of lower quadrant abdominal pain and constipation. 

In this context an abdominal ultrasound was performed where colonic distension and free interloop fluid was seen. Therefore, a CT was obtained and an impacted gallstone was seen at the sigmoid colon. Remotion of the calculus through colonoscopy was attempted but without success, then an exploratory laporatomy was performed, and the calculus was successfully removed.