In a unique collaboration involving LUMC (Leiden University Medical Center), CHDR (Centre for Human Drug Research, situated in Leiden) and national and international partners, research focuses on the introduction of image-guided surgery using clinically available probes and the clinical introduction of novel tumor-targeted probes. We deliver high quality image guided surgery applications with our partners to visualize tumors and critical structures. Combining our longstanding expertise in (pre-) clinical development and our unique infrastructure, we offer a one-stop-shop approach for fast clinical translation which will improve surgical planning and radical tumor resection. Dr Vahrmeijer aims at disseminating this technique to collaborating hospitals all over the world. The Green Light research group facilitates, stimulates and supports knowledge transfer and education.