Tematys, together with EPIC – the European Photonics Industry Consortium, published in bioPHOTONICS (Decelber 2014) an article on the advances in intraoperative assessment of tumor resection margins. The article is based on a workshop organized by EPIC in July 2014 at the Erasmus Medical Center in Rotterdam. Clinicians and technology developers discussed the difficulties of evaluating tumor margins during surgeries and tried to determine how photonic technologies can be helpful.