Kidney Surgery Using Firefly Fluorescence (VIDEO) MedStar Georgetown University Hospital This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Keith Kowalczyk, M.D., performs kidney surgery using Firefly fluorescence with da Vinci Surgical System to remove just the kidney tumor while sparing healthy tissue. Firefly lights up the blood supply and then the kidney in "firefly green." Credit MedStar Georgetown University Hospital Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.