Robotic-assisted Contra Open Resection for Suspected or Confirmed Gallbladder Cancer (ROBOCOP)

Inclusion Criteria: * Patient with radiologically suspected or confirmed (≥T1b) incidental gallbladder cancer after cholecystectomy with an indication of radical cholecystectomy, without the need for resection of extrahepatic bile ducts, as decided at a multidisciplinary team conference. * Patient sufficiently fit to undergo radical cholecystectomy according to surgeon and anaesthesiologist. Exclusion Criteria: * Previous extensive surgery in the upper abdomen (for example open liver surgery) * Pregnancy * Intraoperative findings of dissemination (patient is then excluded after randomization) * Intraoperative findings of the need to perform resection of extrahepatic bile ducts (patient is then excluded after randomization). * Intraoperative findings leading to a simple cholecystectomy only (patient is then excluded after randomization)