Diagnostic Challenges in colorectal cancer Sunday March 22, 2015, 1:30pm – 5pm, Location : Hynes Convention Center Ballroom B Moderator: Hala El-Zimaity, University of Toronto 1:35 –2: 05PM: Tumor budding in pre-operative biopsies and resections: Alessandro Lugli, Universität Bern, Institute of Pathology, Switzerland 2:…