Gall bladder (GB) duplication is a rare congenital disease, and patients with a duplicated GB are usually asymptomatic. Besides, as duplicated GB is rarely detected preoperatively, it might increase the difficulty of cholecystectomy, the risk of biliary injury, and the possibility of conversion to open surgery. This case report describes a challenging laparoscopic cholecystectomy for duplicated GB in a woman with biliary colic and polyp disease. Case presentation A 62-year-old woman presented to the Department of Hepatobiliary and Pancreatic Diseases with complaints of upper abdominal pain and nausea without fever, jaundice, or other symptoms.

Medical history Nausea and upper abdominal pain were recurrent for one year. Medical examination Ultrasound of the abdomen showed the presence of polyps in the GB. Gastroscopy suggested the diagnosis of chronic superficial gastritis. Abdominal…