Choledocholithiasis is a common disease of the biliary system. the traditional surgical method for this is to remove the gallbladder, open the common bile duct, remove the stones and place a t-tube in the common bile duct for drainage. Common bile duct exploration usually requires a t-tube. Without a t-tube, there is a risk of bile leakage due to pressure in the bile duct. after the t-tube is placed, patients experience some form of discomfort and inconveniences with daily life, and there is also a risk of accidental detachment, as well as a risk of bile leakage when the t-tube is removed. In severe cases, patients may need to be hospitalized again. With advancements being made in surgical instruments and technology, laparoscopic common bile duct exploration has been widely used. Due to the carbon dioxide pneumoperitoneum, laparoscopic common bile duct exploration requires a long period of time for t-tube sinus formation compared with open surgery. therefore, the extubation time needs to be prolonged in laparoscopic common bile duct exploration. the use of an internal drainage tube may be used in order to avoid the aforementioned disadvantages. Since 2012, the authors have performed laparoscopic common bile duct exploration with the placement of an internal drainage tube for the treatment of common bile duct stones, and have completed >160 surgeries. the present study provides a summary of the data of these 160 cases. the 160 patients underwent laparoscopic cholecystectomy. Following the removal of the stones, an internal drainage tube was placed, and the common bile duct incision was primary sutured. all patients were discharged, and there were no complications, such as biliary leakage, biliary bleeding and biliary stricture. on the whole, the present study demonstrates that where possible, the placement of an internal drainage tube in laparoscopic common bile duct exploration is safe and reliable, and may be used to avoid the risk of bile leakage without a t-tube, any inconveniences for patients, and the risk of bile leakage following the removal of the t-tube.

Laparoscopic pancreaticoduodenectomy is one of the most challenging operations in abdominal surgery, with a high risk and numerous potential complications. Laparoscopy can magnify the surgical field, improving vision, but it cannot see through and identify the internal structures of the surgical field. Intraoperative navigation is a technology currently being developed; it projects the three-dimensional (3D) image established before surgery onto the surgical area during surgery, locates the anatomical landmarks, matches the 3D image with the actual image, and then displays the relationship between the tumor and the surrounding blood vessels. The important structures such as tumors, blood vessels, bile ducts and pancreatic ducts are quickly identified. Secondary injuries are reduced, the operation speed is increased and the surgical safety is improved. The present study describes the use of surgical navigation technology in the 3D laparoscopic pancreaticoduodenectomy of a 64-year-old man. The present paper reports the treatment process of the case, the application of surgical navigation technology in the operation and discusses the advantages of surgical navigation technology in 3D laparoscopic pancreaticoduodenectomy.

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Bacterial liver abscesses caused by ingested bodies are very uncommon. In the current report, a unique case of a 50-year-old man associated with diabetes mellitus who suffered from sepsis and a liver abscess because of the migration of a fishbone that lodged in the left hepatic lobe is presented. The diagnosis was confirmed by enhanced computed tomography examination of the upper abdomen. The patient subsequently underwent laparoscopic surgery, and was discharged on postoperative day 12 without any complications. The present study discusses the clinical features and treatment of this case.