At the 18th European Hematopathology Meeting held in Basel, Switzerland between 3-8 September 2016 by Güneş Esendağlı, Ayşegül Üner, M. Alper Kurşunel, Diğdem Yöyen-Ermiş and Sehbal Arslankoz in partnership with Cancer Institute and Department of Pathology. The study titled "Expression of costimulatory molecules on Hodgkin's lymphoma cells and modulation of T cell responses" presented by the European Association for Haematopathology was awarded the "Best Poster" award. Within the scope of this congress, which is considered the most prestigious meeting of the world in the field of hematopathology, a team from Turkey was awarded for the first time with this study selected from more than 150 presentations.