Currently, there is no intraoperative technique to better visualize the tumor limits in real time. With fluorescence techniques, an accurate mapping of tumor extension can be considered. Recently, Atallah et al. (2015) demonstrated the use of fluorescence during a head and neck surgery in mice, as a tool allowing for better surgical margins. Digonnet et al (2015) found a tumor fragment after an injection of indocyanine green (ICG) intravenously in salvage surgery for patient with head and neck cancer.