title: [Trans-umbilical three-dimensional single-incision laparoscopic cholecystectomy: report of two cases].
abstract: OBJECTIVE
  To explore the feasibility of single-incision laparoscopic cholecystectomy using a three-dimensional (3D) laparoscopic system.
  
  
  METHODS
  Two patients with benign gallbladder disease with a history of recurrent abdominal pain were selected to undergo the surgery. Gallstones were diagnosed by B ultrasound examination. All the operations were performed through the umbilical incision with the 3D laparoscopic system.
  
  
  RESULTS
  The 2 operations were completed successfully with a operative time of 35 min and 50 min. Both of the patients were ambulatory 8 h after the surgery, began to have a normal diet 1 day after operation, and were discharged 2 days postoperatively without any clinical symptoms.
  
  
  CONCLUSIONS
  3D single-incision laparoscopic operation can well reveal the tissue anatomy in the operative field especially for some important structures such as the Calot's triangle with an improved safety compared to conventional laparoscopic operations.
authors.affiliation: Department of Hepatobiliary Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China. E-mail: chengyuan9226@sohu.com.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Cheng
authors.forename: Zesheng
authors.initials: Z
authors.lastname: Jiang
authors.forename: Kanghua
authors.initials: K
authors.lastname: Wang
authors.forename: Guolin
authors.initials: G
authors.lastname: He
authors.forename: Jiasheng
authors.initials: J
authors.lastname: Qin
authors.forename: Haiyan
authors.initials: H
authors.lastname: Liu
authors.forename: Yi
authors.initials: Y
authors.lastname: Gao
authors.forename: Mingxin
authors.initials: M
authors.lastname: Pan
mesh_terms: D017081:Cholecystectomy, Laparoscopic; D002769:Cholelithiasis / Q000601:surgery*; D005705:Gallbladder Diseases / Q000601:surgery*; D042882:Gallstones; D006801:Humans