Prof. Dirk Arnold, MD PhD, currently serves as Director of the Asklepios Tumorzentrum Hamburg, Northern Germany´s largest network cancer centre. Additionally, he is Hard of the Oncology and Oncology Department of AK Altona, Hamburg. Dirk Arnold is a key member of several societies (e.g. ESMO Council member) and gastrointestinal cancer research activities, e.g. German AIO, EORTC, and others. His main field of expertise are interdisciplinary clinical research activities in the field if colorectal and anal cancers.