Acute Cholecystitis, A Rare Complication Following Routine Colonoscopy: Case Series and Literature Review.

Colonoscopy is a commonly performed low-risk gastrointestinal procedure that may rarely result in a serious complication. Patients presenting with abdominal pain and fever after colonoscopy may have acute cholecystitis. The underlying mechanisms are unclear. Such patients usually present within 72 hours of the procedure. Treatment includes intravenous antibiotics and cholecystectomy. We present our experience of two such cases; a 56-year-old man and a 21-year-old man, both of whom developed acute calculus cholecystitis within 48 hours after a routine colonoscopy. Their symptoms resolved after cholecystectomy.