a double cystic duct with a single gall bladder successfully treated with laparoscopic cholecystectomy: a challenge to laparoscopic surgeons

Although the cystic duct has diverse variations, a double cystic duct is rarely found. only 20 cases had been reported until late 2017. in the present study, we describe a 58-year-old woman with a double cystic duct who initially presented with a passed stone and pancreatitis concomitant with a gall-bladder containing microlithiasis. the double cystic duct was not detected in preoperative endoscopic ultrasonography; and the anomaly was an incidental finding during laparoscopic cholecystectomy. the patient had no post-operative complications and was discharged uneventfully. post-operative magnetic resonance cholangiography showed a normal biliary tree structure.