Prof. Dr. med. Karl J. Oldhafer is a Senior Consultant of the Department of General and Abdominal Surgery and Surgical Oncology at the Abdominal Medical Center of the Barmbek Asklepios Hospital and is a specialist in hepatic surgery. His medical interests include radioservice computer-navigated liver surgery, metastasis surgery, surgery using the ultrasonic knife, minimally invasive abdominal surgery, hepatobiliary surgery, and pancreatic surgery.