Wim P CEELEN, MD, PhD, FACS, is an academic surgical oncologist who is active in clinical, translational, and preclinical research. He has an active interest in the role and pathophysiology of lymph node metastasis in colorectal cancer and has published in this field intensively. Dr Ceelen has previously edited two volumes on peritoneal metastasis and intraperitoneal drug delivery. He has coauthored over 200 scientific publications to date.