Title: A Case For The Robot: Bile Duct Resection & Hepaticojejunostomy For Type 1 Choledochal CystAlSalmay Y, Demyan L, Onofreichuk-Demyan D, Deutsch G.Department of Surgical Oncology, Northwell Health, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY 11030, USA Abstract: A minimally invasive approach to hepatobiliary reconstruction can be technically difficult due to the need to suture a fine structure in a tight, enclosed space, and related to critical vasculature structures. The use of the DaVinci surgical system can aid in visualization and maneuverability, facilitating dissection and anastomoses in this area. As more surgeons are training in and adopting robotics around the world, the robotic approach in hepatobiliary surgery is gaining popularity due to the ability to gain finer dissection and improved visualization. We present a case of a 60-year-old female with type 1 choledochal cyst. She had cholecystectomy and a sleeve gastrectomy 15 years prior to this presentation. An abdominal ultrasound showed intra and extrahepatic biliary ductal dilation thought to be secondary to cholecystectomy. An MRCP showed a moderately dilated common duct without obstructing stone or mass. She had a replaced right hepatic artery. Endoscopic ultrasound showed a dilated bile duct with no choledocholithiasis. She was scheduled for robotic-assisted laparoscopic choledochal cyst resection and hepaticojejunostomy. The case shown in this video demonstrates how we can take advantage of fully-articulating instruments, multiple arms, and three-dimensional visualization of the robot to perform a choledochal cyst resection and hepaticojejunostomy with abnormal anatomy.