P.J. Tanis Pieter Tanis MD, PhD

Pieter Tanis is consultant at the Academic Medical Centre since 2010, Chairman of the Dutch Colorectal Cancer Group, board member of the Dutch Surgical Colorectal Audit (DSCA) and Dutch Peritoneal Oncology Group (DPOG), a member of the advisory board of the Maag Lever Darm Stichting (MLDS) and Lynch-Polyposis society, member of the national colorectal cancer guideline committee, and Associate Editor of Colorectal Disease and Digestive Surgery.

Specialism: Colorectal and liver surgery


Pieter Tanis finished Medical School in 1998. He defended his thesis ‘Methodology and implications of lymphatic mapping and sentinel lymphadenectomy’ at the University of Amsterdam in 2002. He was trained as general surgeon in Amsterdam between 2002 and 2008, followed by a two year fellowship in surgical oncology.
His clinical and research focus is colorectal cancer, both primary tumor and metastatic disease. Besides his core focus, he is involved in the teams of intestinal failure, pelvic redo surgery, gynecologic oncology, and inflammatory bowel disease. Minimally invasive surgery is an important aspect of his clinical work.
He has published over 140 articles in peer reviewed journals and is principle investigator of the multicenter randomized BIOPEX and COLOPEC trials on pelvic floor reconstruction after APR for rectal cancer and prophylactic HIPEC in T4 colon cancer. Furthermore, he is part of the steering committee of the TESAR trial on rectal preserving treatment and CAIRO6 trial on perioperative systemic therapy in patients undergoing CRS+HIPEC.