Acute cholecystitis after a colonoscopy.

Acute cholecystitis after a colonoscopy is a rare event, and only eight documented cases are reported in the literature. A 35-year-old male underwent a screening colonoscopy. There was a 5-mm sessile polyp in the sigmoid colon, which was removed by using a hot snare polypectomy. Forty-eight hours after the colonoscopy, the patient visited our emergency department with epigastric pain and fever. Based on the clinical findings, laboratory data and radiologic imaging, our diagnosis was acute cholecystitis. Because no previous cases of this type have been reported to date in Korea, we publish the details of our patients who presented with a postcolonoscopy complication diagnosed as acute cholecystitis.